What does this mathematical rebus means ?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

How is a fly different from a mosquito?

What word is represented by this rebus?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Why is a river so rich ?