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?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

What does this Rebus Picture means ?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

In the image below, can you find the value of an angle(y)

What goes up but never comes down?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Why did Buffon take the goal with him after every Juventus match?

If two's company, and three's a crowd, then whats four and five ?