Mensa IQ Test Mensa IQ Coding and Decoding 6

Question 1

If SMART is coded as TMBSU (each letter +1), what does TMARK decode to in the original language?

Accepted Answer

SLZQJ

Answer

SLZRJ

Answer

SMZQJ

Answer

TLZQJ

Question 2

In a word-substitution code: 'sky' means 'water', 'water' means 'road', 'road' means 'air'. A bird flies in the ___?

Accepted Answer

road

Answer

sky

Answer

water

Answer

air

Question 3

A code assigns prime-number positions to vowels only: A=2, E=3, I=5, O=7, U=11. What is the product of the vowel codes in MANGO?

Accepted Answer

14

Answer

21

Answer

11

Answer

7

Question 4

The first letter of a coded word is the last letter of the original, and vice versa; middle letters shift +1. SPORT coded = ?

Accepted Answer

TQPRT

Answer

TRQPT

Answer

TQPRS

Answer

TQPOT

Question 5

In code: 'big dog ran' = P Q R, 'small cat ran' = S T R, 'big cat jumped' = P T U. What is the code for 'dog'?

Accepted Answer

Q

Answer

P

Answer

R

Answer

S

Question 6

A zigzag code writes letters alternately forward (+1) and backward (−1). For SUN: S+1=T, U−1=T, N+1=O. What is MOON coded?

Accepted Answer

NNPN

Answer

NLPN

Answer

NNPO

Answer

NLPO

Question 7

If letters are replaced by their squared alphabet-position value: A(1²=1), B(4), C(9)… What is the code for 'ACE'?

Accepted Answer

1-9-25

Answer

1-3-5

Answer

2-4-6

Answer

1-4-9