What always comes into a house through the keyhole?

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?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Which is the smallest number that you can write using all the vowels exactly once?

What is wrong in the below Picture?

The Little ant seems to be always confused. Do you know why?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?