Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Find the next number in the sequence

5 12 24 36 ?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

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?

Why is it very easy to weigh a fish?

How can a man go eight days without sleep?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

What is full of holes but still holds water?

How many times in a given day, minutes and hour clock comes in a straight line ?