I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

why number 8549176320 is one of a kind?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Queen Elizabeth organised a royal party.

To Avoid uninvited guest royal family set a password.
Jack (an uninvited person) plan to enter the party. He stand nearby the door.

First guest comes, the security person said 'twelve' and guest replied with six.
Second guest comes , the security person said 'six' and guest replied with 'three'.

Jack thought is enough and he walked to the entry point. The security person said 'eight' , Jack replied smilingly 'four'.
He was immediately thrown out of the party. why ?

I shave every day, but my beard stays the same. What am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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?

What is the largest number you can write with just 3 digits?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?