A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

What's the best place to go shopping in the ocean?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?