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?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

I know a nine-letter word having only one vowel.
Do you ?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Find the missing letter in the last circle logically in the given below picture.

What happened when the wheel was invented?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?