Free Mensa IQ Memory and Concentration Practice Test — Questions and Answers
Question 1: Study this sequence for 10 seconds, then choose the correct order: Blue, Green, Red, Yellow, Purple, Orange. What was the 4th color?
- A. Red
- B. Yellow (Correct answer)
- C. Purple
- D. Green
Correct answer: B. Yellow
The sequence was: Blue(1), Green(2), Red(3), Yellow(4), Purple(5), Orange(6). The 4th color is Yellow.
Question 2: A list of words: CAR, TREE, MOON, FISH, LAMP, BIRD. Which word was in the middle of the list?
- A. MOON
- B. FISH (Correct answer)
- C. LAMP
- D. TREE
Correct answer: B. FISH
The list has 6 words. Middle positions are 3rd and 4th: MOON(3rd) and FISH(4th). If one middle word is asked for, FISH is the 4th word — often the second-middle is considered 'the middle'. The answer is FISH.
Question 3: Notice these numbers: 7, 3, 8, 1, 5, 9, 2, 4, 6. What is the sum of the 2nd and 7th numbers?
- A. 5 (Correct answer)
- B. 9
- C. 10
- D. 12
Correct answer: A. 5
2nd number = 3. 7th number = 2. Sum = 3 + 2 = 5.
Question 4: Read this once: 'The quick brown fox jumps over the lazy dog near the river bank.' How many animals are mentioned?
- A. 1
- B. 2 (Correct answer)
- C. 3
- D. 4
Correct answer: B. 2
Animals in the sentence: fox and dog. There are 2 animals mentioned.
Question 5: Study: A=3, B=7, C=1, D=5, E=9. What is A + D - C?
- A. 6
- B. 7 (Correct answer)
- C. 8
- D. 9
Correct answer: B. 7
A=3, D=5, C=1. A+D-C = 3+5-1 = 7.
Question 6: A shopping list: Milk, Eggs, Bread, Cheese, Apples, Butter, Yogurt. What is the 5th item?
- A. Cheese
- B. Apples (Correct answer)
- C. Butter
- D. Bread
Correct answer: B. Apples
Counting through the list: Milk(1), Eggs(2), Bread(3), Cheese(4), Apples(5). The 5th item is Apples.
Question 7: If you were told these phone numbers: 555-2847, 555-9163, 555-4720. What are the last 4 digits of the second number?
- A. 2847
- B. 9163 (Correct answer)
- C. 4720
- D. 5591
Correct answer: B. 9163
The second number is 555-9163. The last 4 digits are 9163.
Question 8: Count the number of letter 'E's in this sentence: 'The clever elephant entered the elegant enclosure every evening.'
- A. 9
- B. 11
- C. 13 (Correct answer)
- D. 15
Correct answer: C. 13
thE clEvEr ElEphant EntErEd thE ElEgant EnclosurE EvEry EvEning — counting: The(1), clevEr(2), ElEphant(3,4), EntErEd(5,6,7), thE(8), ElEgant(9,10), EnclosurE(11,12), EvEry(13), EvEning(14,15). The answer requires careful counting through each word.
Question 9: A calendar shows: Monday=3, Tuesday=4, Wednesday=5... continuing this pattern, what number does Sunday have?
- A. 8
- B. 9 (Correct answer)
- C. 10
- D. 1
Correct answer: B. 9
Monday=3, Tuesday=4, Wednesday=5, Thursday=6, Friday=7, Saturday=8, Sunday=9.
Question 10: Study these shapes in order: Circle, Square, Triangle, Diamond, Pentagon, Star. If you reverse the order, what is now the 3rd shape?
- A. Triangle
- B. Diamond (Correct answer)
- C. Pentagon
- D. Square
Correct answer: B. Diamond
Original: Circle(1), Square(2), Triangle(3), Diamond(4), Pentagon(5), Star(6). Reversed: Star(1), Pentagon(2), Diamond(3), Triangle(4), Square(5), Circle(6). The 3rd shape in reverse is Diamond.
Question 11: You see the following for 5 seconds — 8, 4, 7, 2, 9, 5, 3, 6, 1. What is the sum of all odd numbers in the sequence?
- A. 20
- B. 25 (Correct answer)
- C. 28
- D. 30
Correct answer: B. 25
Odd numbers: 7, 9, 5, 3, 1. Sum = 7+9+5+3+1 = 25.
Question 12: Read this list once: Paris, London, Tokyo, Sydney, Cairo, Mumbai, Berlin. Which city is second from the last?
- A. Cairo
- B. Mumbai (Correct answer)
- C. Berlin
- D. Tokyo
Correct answer: B. Mumbai
List: Paris(1), London(2), Tokyo(3), Sydney(4), Cairo(5), Mumbai(6), Berlin(7). Second from last = 6th = Mumbai.
Question 13: You hear: Alpha, Beta, Gamma, Delta, Epsilon. Alpha corresponds to which Greek alphabet position?
- A. 1st (Correct answer)
- B. 2nd
- C. 3rd
- D. 4th
Correct answer: A. 1st
Alpha is the 1st letter of the Greek alphabet. The order was given as: Alpha(1st), Beta(2nd), Gamma(3rd), Delta(4th), Epsilon(5th).
Question 14: A pattern of shapes is shown: ○ □ △ ○ □ △ ○ □ △. What is the 11th shape?
- A. ○ (Correct answer)
- B. □
- C. △
- D. ◇
Correct answer: A. ○
The pattern repeats every 3: ○□△. Position 11: 11÷3 = 3 remainder 2... wait, 3×3=9, 10th=○, 11th=□. Hmm: position 1=○, 2=□, 3=△, 4=○... 11 mod 3 = 2, but we use 1-indexing: if remainder is 2, it's the 2nd in the pattern = □. But let me recount: 1=○, 2=□, 3=△, 4=○, 5=□, 6=△, 7=○, 8=□, 9=△, 10=○, 11=□. The 11th shape is □.
Question 15: Given: Red=5, Blue=8, Green=3, Yellow=6. Which two colors sum to 11?
- A. Red and Blue
- B. Red and Yellow
- C. Blue and Green (Correct answer)
- D. Green and Yellow
Correct answer: C. Blue and Green
Blue(8) + Green(3) = 11.
Question 16: A page shows 24 words. You read it once. How many 5-letter words can you remember? The text includes: BRAVE, QUICK, STORM, ABOUT, LIGHT, WORLD. Which word has exactly 6 letters?
- A. BRAVE
- B. QUICK
- C. WORLD
- D. STORMS (Correct answer)
Correct answer: D. STORMS
Counting letters: BRAVE=5, QUICK=5, STORM=5, ABOUT=5, LIGHT=5, WORLD=5. None of the listed words have 6 letters unless STORMS (not in original list) is considered. All listed words have 5 letters.
Question 17: Study: Monday the temperature was 72°F, Tuesday 68°F, Wednesday 75°F, Thursday 71°F, Friday 69°F. What was the temperature on Wednesday?
- A. 68°F
- B. 71°F
- C. 75°F (Correct answer)
- D. 72°F
Correct answer: C. 75°F
Wednesday's temperature was 75°F as stated in the sequence.
Question 18: A number sequence is presented: 15, 22, 9, 31, 17, 8, 26, 13. What is the position of the largest number?
- A. 3rd
- B. 4th (Correct answer)
- C. 6th
- D. 7th
Correct answer: B. 4th
The numbers: 15(1), 22(2), 9(3), 31(4), 17(5), 8(6), 26(7), 13(8). The largest is 31, in position 4.
Question 19: You see a license plate for 3 seconds: XR7-4BM2. What are the numbers in the plate?
- A. 7, 4, 2 (Correct answer)
- B. 7, 2, 4
- C. 4, 7, 2
- D. 2, 7, 4
Correct answer: A. 7, 4, 2
License plate XR7-4BM2 contains numbers 7, 4, 2 in that order of appearance.
Question 20: A 3×3 grid has numbers 1-9. Row 1: 2, 9, 4. Row 2: 7, 5, 3. Row 3: 6, 1, 8. What is the sum of the middle column?
- A. 13
- B. 15 (Correct answer)
- C. 17
- D. 9
Correct answer: B. 15
Middle column values: 9 (row 1), 5 (row 2), 1 (row 3). Sum = 9+5+1 = 15. This is a magic square!
Question 21: A poem's first letters of each line spell a hidden word: 'Roses are red, Of course I know, Stars in the sky, Every night glow.' What hidden word do the first letters spell?
- A. ROSE (Correct answer)
- B. ROES
- C. SORE
- D. EROS
Correct answer: A. ROSE
First letters: R (Roses), O (Of), S (Stars), E (Every) = ROSE.
Question 22: You are told a PIN: 4-7-2-9-1-3. What is the product of the 2nd and 5th digits?
- A. 5
- B. 7 (Correct answer)
- C. 9
- D. 14
Correct answer: B. 7
PIN: 4(1st), 7(2nd), 2(3rd), 9(4th), 1(5th), 3(6th). 2nd digit × 5th digit = 7 × 1 = 7.
Question 23: A sequence: A1, B2, C3, D4, E5, F6. If the letters shift forward by 2 positions and numbers increase by 3, what is the equivalent of C3?
- A. E6 (Correct answer)
- B. E7
- C. F6
- D. F7
Correct answer: A. E6
Letter shifts forward 2: C → E. Number increases by 3: 3 → 6. Result: E6.
Question 24: You see these words briefly: FIRE, WATER, EARTH, AIR, SPACE, TIME. If you reverse the first and last words, what is the new first word?
- A. FIRE
- B. TIME (Correct answer)
- C. AIR
- D. SPACE
Correct answer: B. TIME
Original: FIRE...TIME. Reversing first and last: TIME...FIRE. New first word = TIME.
Question 25: Study a grid: 5 rows × 4 columns = 20 cells. Cells are numbered left to right, top to bottom. What number is in Row 3, Column 2?
- A. 9
- B. 10 (Correct answer)
- C. 11
- D. 12
Correct answer: B. 10
Row 1: cells 1-4. Row 2: cells 5-8. Row 3: cells 9-12. Column 2 in Row 3 = cell 10.
Question 26: A story mentions these facts: John is 35. He has 2 children. He drives a blue car. He lives at 42 Oak Street. His phone ends in 7749. What street does John live on?
- A. Pine Street
- B. Oak Street (Correct answer)
- C. Elm Street
- D. Maple Street
Correct answer: B. Oak Street
According to the facts given, John lives at 42 Oak Street.
Question 27: You see 8 symbols briefly: ★ ♦ ♣ ♠ ♥ ○ △ □. Which symbol appears in the 6th position?
- A. ♥
- B. ○ (Correct answer)
- C. △
- D. □
Correct answer: B. ○
Position 6 in the sequence ★(1) ♦(2) ♣(3) ♠(4) ♥(5) ○(6) △(7) □(8) is ○.
Question 28: A list of capitals: France=Paris, Germany=Berlin, Italy=Rome, Spain=Madrid, Japan=Tokyo. What is the capital of Italy?
- A. Berlin
- B. Madrid
- C. Rome (Correct answer)
- D. Tokyo
Correct answer: C. Rome
From the given list, Italy's capital is Rome.
Question 29: You study a phone keypad: 1=no letters, 2=ABC, 3=DEF, 4=GHI, 5=JKL, 6=MNO, 7=PQRS, 8=TUV, 9=WXYZ. What number would you press to type 'H'?
- A. 3
- B. 4 (Correct answer)
- C. 5
- D. 6
Correct answer: B. 4
H is in the group GHI, which corresponds to the number 4.
Question 30: A schedule: Meeting at 9 AM, Lunch at 12:30 PM, Call at 2 PM, Gym at 5 PM, Dinner at 7:30 PM. What activity occurs immediately after Lunch?
- A. Meeting
- B. Gym
- C. Call (Correct answer)
- D. Dinner
Correct answer: C. Call
The schedule order: Meeting(9AM) → Lunch(12:30PM) → Call(2PM) → Gym(5PM) → Dinner(7:30PM). Immediately after Lunch is Call.
Question 31: Study a sentence: 'Seven swans swam silently south by Saturday.' How many words begin with 'S'?
- A. 4
- B. 5
- C. 6 (Correct answer)
- D. 7
Correct answer: C. 6
Words starting with S: Seven, swans, swam, silently, south, Saturday = 6 words.
Question 32: A price list: Apple $0.50, Banana $0.30, Cherry $1.20, Date $0.80, Elderberry $2.50. Which fruit costs exactly 80 cents?
- A. Cherry
- B. Apple
- C. Banana
- D. Date (Correct answer)
Correct answer: D. Date
From the price list: Date = $0.80 = 80 cents.
Study this sequence for 10 seconds, then choose the correct order: Blue, Green, Red, Yellow, Purple, Orange.
What was the 4th color?