What happened when the wheel was invented?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Find out the missing number in the picture attached:

I am sure no one can have two things for dinner. what are they?

A bomb exploded in a room full of married couples and no one died. How?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

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?”

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.