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 do we preferably have round manhole covers and not square ones?

Find the missing number in the image below.

What kind of band never plays music?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Can you count the number of lines in the below picture?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"