How could a baby fall out of a twenty-story building onto the ground and live?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

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

2, 3, 5, 9, 17, _ What is the next number in the sequence?

A monk has a very specific ritual for climbing up the steps to the temple. First, he climbs up to the middle step and meditates for 1 minute. Then he climbs up 8 steps and faces east until he hears a bird singing. Then he walks down 12 steps and picks up a pebble. He takes one step up and tosses the pebble over his left shoulder. Now, he walks up the remaining steps three at a time which only takes him 9 paces. How many steps are there?

How can a man go eight days without sleep?

Solve the rebus riddle in the picture below.

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

Explain?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?