I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

By moving just one matchstick, you need to make the below statement true. Can you do it?

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?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What has one eye, but can’t see?

If eleven plus two equals one, what does nine plus five equal?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?