I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Solve the following series:
AZ, GT, MN, __, YB

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

How can one talk without saying a single word?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?