Mensa IQ Test Mensa IQ Coding and Decoding 4

Question 1

In a code, APPLE → BQQMF (each letter +1). What is GRAPE coded as?

Accepted Answer

HSBQF

Answer

G+1=H, R+1=S, A+1=B, P+1=Q, E+1=F → HSBQF.

Question 2

RACECAR backwards is RACECAR. Which code technique produces the same output for this word?

Accepted Answer

Reversing the word

Answer

RACECAR is a palindrome; the only listed technique that preserves it is reversing — palindromes read the same forward and backward.

Question 3

If word 'sun' = 19-21-14 and 'moon' = 13-15-15-14, what word is 19-20-1-18?

Accepted Answer

STAR

Answer

S=19, T=20, A=1, R=18 → STAR.

Question 4

In a shift code, LEMON = OHPRQ. What is the shift?

Accepted Answer

+3

Answer

L+3=O, E+3=H, M+3=P, O+3=R, N+3=Q — each letter advances 3 positions.

Question 5

Using the code A=1, B=2, C=3, …, Z=26, what is the sum of the codes for 'ACE'?

Accepted Answer

9

Answer

A=1, C=3, E=5; 1+3+5=9.

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