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?

Count the number of balls in picture below:

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

What is at the end of a rainbow?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Remove two matchsticks to make the below equation correct.

Solve The below Equation:

ALFA + BETA + GAMA = DELTA