What does this rebus puzzle means ?

Why is 6 afraid of 7?

Can you place three balls such that the equation shown in the picture holds true?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What word is pronounced the same if you take away four of its five letters?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?