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?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Count the number of triangles in the below picture?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

They are three errirs in this question. Can you find them?