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?

Why do people go to bed?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

How can you tell a raw egg from a hard-boiled egg?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?