A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

I’m tall when I’m young, and I’m short when I’m old. What am I?

Who is that with a neck and no head, two arms and no hands? What is it?

What kind of storm is always in a rush?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

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?

A bomb exploded in a room full of married couples and no one died. How?