Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you find a five letter word that is left with only two letters if one is removed?

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 ?

How can you make number one disappear by adding something to it?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

What is the longest word in the dictionary?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?