Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 1 — Questions and Answers
Question 1: A is the father of B. B is the sister of C. C is the son of D. How is A related to D?
- A is D's husband (Correct answer)
- A is D's brother
- A is D's son
- A is D's father
Correct answer: A is D's husband
C is D's son, and C is B's brother, and B is A's child — so D is the mother of C (and B), making A the husband of D.
Question 2: A man walks 5 km north, turns right and walks 3 km, turns right again and walks 5 km. In what direction is he now from his starting point?
- East (Correct answer)
- West
- North
- South
Correct answer: East
North 5 km, then east 3 km, then south 5 km — he is now 3 km east of his starting point, so he is to the east.
Question 3: Pointing to a woman, a man says 'She is the only daughter of my mother's husband's mother.' How is the woman related to the man?
- Aunt (Correct answer)
- Mother
- Sister
- Grandmother
Correct answer: Aunt
The man's mother's husband is the man's father; the father's mother is the man's paternal grandmother; the only daughter of the paternal grandmother is the man's paternal aunt.
Question 4: A is B's brother. B is C's mother. C is D's sister. How is A related to D?
- Uncle (Correct answer)
- Father
- Brother
- Grandfather
Correct answer: Uncle
B is C's mother, and C is D's sibling, so B is also D's mother. A is B's brother — therefore A is the uncle of D.
Question 5: Starting facing north, a person turns left 90°, then left 90° again, then right 90°. What direction is the person now facing?
- East
- West (Correct answer)
- South
- North
Correct answer: West
From north: left 90° = facing west; left 90° again = facing south; right 90° = facing west.
Question 6: P's mother is Q's only daughter. How is Q related to P?
- Grandmother (Correct answer)
- Mother
- Aunt
- Sister
Correct answer: Grandmother
Q's only daughter is P's mother — therefore Q is P's maternal grandmother.
Question 7: A person walks 10 km east, then 10 km north, then 10 km west, then 10 km south. How far are they from their starting point?
- 0 km — they are back at start (Correct answer)
- 10 km
- 20 km
- 14.1 km
Correct answer: 0 km — they are back at start
East 10, North 10, West 10, South 10 forms a complete square, returning the person exactly to their starting point.
Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 1
A is the father of B.
B is the sister of C.
C is the son of D.
How is A related to D?