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?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Can you move 2 matchsticks to form four equal sized squares.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

I know a nine-letter word having only one vowel.
Do you ?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What English word has three consecutive double letters?