If it took eight men ten hours to build a wall, how long would it take four men to build it?

what does this picture(rebus) riddle means ?

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?

Which part of London exists in France as well ?

I can be cracked, made, told, and played. What am I?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?

What can go up a chimney down, but can’t go down a chimney up?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

What always comes into a house through the keyhole?