You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Give it food and it will live; give it water and it will die.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

I am white when I am dirty, and black when I am clean. What am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?