Why is 6 afraid of 7?
What has lots of eyes, but can’t see?
I am a white box having no key or lid. Yet there is a golden treasure inside it. What Am I?
What's the next in the series? H, Be, F, S, Mn, Kr, In, Gd, Tl, ?
How many triangles are there on the puzzle below?
Can you find out the missing number? ? 4 5 3 5 9 5 7 10 3
How many times can you subtract the number 5 from 25?
What does the following represent? N N N N N N N A A A A A A A C C C C C C C
You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?
A man dies of old age on his 25 birthday. How is this possible?
What is the largest number you can write with just 3 digits?
The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.
