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?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

Bay of Bengal is in which state?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What is wrong in the below Picture?

During which month do people sleep the least?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?