What is common among 11, 69, and 88?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

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?

When is the top of a mountain similar to a savings account?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

How can a man go eight days without sleep?

What 5-letter word typed in all capital letters can be read the same upside down?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

What brings you down but never up?