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?

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

Which flower has two lips?

Why is the longest human nose just 11 inches?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

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?

What month of the year has 28 days?

Can you write down eight eights so that they add up to one thousand?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?