What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Solve the puzzle by telling what does below picture means.

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?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

What is the Surname of Barbie Doll?

You can see it everyday, But cannot touch it at will. What is it?

The current time can be represented by below textual rebus.

0
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B.Sc
LLB

Can you tell us the current time?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Why do we preferably have round manhole covers and not square ones?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?