Odd One Out

Which number is the odd one out?

9678  4572  5261  5133  3527  6895  7768

Answer:

3527: in the others the sum of the first two numbers is equal to the sum of the second two numbers, for example 5 + 2 = 6 + 1.

0, 1, 2, 4, 6, 9, 12, 16, ?

0, 1, 2, 4, 6, 9, 12, 16, ?

What number should replace the question mark?

Answer:

20: add 1, 1, 2, 2, 3, 3, 4, 4.

Most Opposite

Which word in brackets is most opposite to the word in capitals?

PROSCRIBE (allow, stifle, promote, verify, indict)

Answer:

allow

Form a Perfect Square

Which piece below, when fitted into the piece on the left, will form a perfect square?

 

 

Answer:

B

True and False Statements

Which of the following statements are true and which are false?

 

Answer:

A is true; B is false (the majority are concave); C is false (a spider has eight legs); D is false

(a stalagmite grows upwards, whereas as stalactite grows downwards).