Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

There are two insects on a tile. Insect X is sitting on one side of the tile (point A) and Insect Y is sitting opposite on the other side of the tile (point B). Now both of them decide to change their position and thus X starts crawling to point B and Y starts crawling to point A. When they meet and pass each other in between, X takes 20 seconds to reach B and Y takes just 5 seconds to reach A.

Can you calculate the total time each of the insects took to change their positions?

What does the below image rebus riddle means ?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Do you know who was buried in John's tomb?

You need to arrange three 7 and mathematical symbols to form number 1?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.