A father's child, a mother's child, yet no one's son.

Who am I?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

I travel all around the world but always stay in the corner. What am I?

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

What is more useful when it is broken?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What is wrong in the below Picture?

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?

Can you find the thief by just looking at the picture below?