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?

why number 8549176320 is one of a kind?

Count the number of squares in the picture below.

A cat, a dog and a monkey were stolen. 3 suspects got caught: Harish, Manoj and Tarun. All we know is each person stole one animal, but we do not know who stole which. Here are the investigation statements. Harish said: Tarun stole the cat. Manoj said: Tarun stole the dog. Tarun said: They both were lying. I did not steal the cat or the dog. Later on, the police found out the man who stole the monkey told a lie. The man who stole the cat told the truth. Can you find out who stole which?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

If 1+9+8=1, what is 2+8+9?

How many words can a pen with half refill write?

How far can you walk into the woods?