Why do we preferably have round manhole covers and not square ones?

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

Can you replace the question mark with the correct number in the below table sequence?

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

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 can one talk without saying a single word?

What does this rebus riddle means ?

What building has the most stories?

Can you move 2 matchsticks to form four equal sized squares.

Rectify the following equality 101 - 102 = 1 by moving just one digit.