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?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

What does below Rebus say?

XLR8

You need to arrange three 7 and mathematical symbols to form number 1?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

It is always ahead of me yet I can never see it. What is it?

I am quite hot but become too cold if you remove the first two letters. What am I?

What you cannot hold but it is yours?

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?