I have branches, but no fruit, trunk or leaves. What am I?

What has no start, end, or centre?

What building has the most stories?

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

I am an odd number. Take away a letter and I become even. What number am I?

Find out the missing number in the picture attached:

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?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

Why is the longest human nose just 11 inches?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.