Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Solve this riddle by finding the odd one out from the rest.

Can you count the number of blocks in the picture below?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?