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?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

What's the best place to go shopping in the ocean?

In the picture given below, can you find out which digit will take place of the question mark?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

You can see three almost identical images below. Can you spot the odd one out from them?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?