Logic and Math Puzzles
Random Questions
100

A basket contains 12 red socks and 2 black socks. When picking random socks from the basket, how many socks need to be taken to guarantee getting a matching pair?

3 socks

100

What is the 11th prime number?

31

200

Using exactly four fours, and +, −, ×, ÷ and(), create the numbers 20 and 15.

20 = ( 4 /4 + 4) × 4

15 = (4 × 4) − ( 4 /4 )

200

True or false: The Pythagorean Theorem says that in a right triangle, (Base)^2 + (Hypotenus^2 = (Height)^2 .

False

300

If a magic square is created by using the numbers 1 to 9, what will be the sum of the terms along each row, column and diagonal?

15

300

Can 8 units, 15 units and 17 units be the sides of a right triangle?

Yes

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