During which month do people sleep the least?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

What has to be broken before you can use it?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Remove two matchsticks to make the below equation correct.

No one wants to have it, but if one got it, he does not want to lose it. What is It?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

How far can you walk into the woods?

What does the below rebus riddle means?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.