A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

Why is a river so rich ?

Which is faster, Heat or Cold ? Explain.

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Which famous Hollywood movie name is hidden in the below rebus?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

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

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?