It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

How can you take 2 from 5 and leave 4?

What month of the year has 28 days?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

How many sides does a circle have?

What is the riddle which can be asked all day with a different correct answer each time.

If six children and two dogs were under an umbrella, how come none of them got wet?

John was piloting a plane behind a car but was never able to overtake it. Why?