What always comes into a house through the keyhole?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

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

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

What does the below mathematical rebus mean?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?