I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

Solve the mathematical equation in the picture below.

Can you find out the missing number in the grid?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

I am lying and I always lie. Tell me whether I am lying or telling the truth.

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What does this rebus riddle means ?