P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What has one eye, but can’t see?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Can you replace the question mark with the correct number in the below table sequence?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

What question can you never answer yes to?

Can you find out the remainder when 3^300 is divided by 5?