Which is the correct shadow of the bird?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

Riddle me this, Riddle me that,
What am I? I am made of wood, but you can't see me down?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

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?