What is full of holes but still holds water?

What begins with T, ends with T, and has T in it?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Consider this about a word: 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?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

What kind of band never plays music?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What have one eye but still cannot see?