Why is 6 afraid of 7?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

What English word has three consecutive double letters?

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

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

How could a baby fall out of a twenty-story building onto the ground and live?

Can you start the fire using two pieces of wood?

What can go through glass without breaking it?