Clean riddles

I look taller when I am young. But as I get old, I become shorter and shorter. What Am I?

A man is sitting in a pub feeling rather poor. He sees the man next to him pull a wad of £50 notes out of his wallet. He turns to the rich man and says to him, 'I have an amazing talent; I know almost every song that has ever existed.' The rich man laughs. The poor man says, 'I am willing to 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, Joanna Armstrong-Miller?' The rich man goes home poor. The poor man goes home rich. What song did he sing?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test it was a blank sheet of paper with a solitary question on it: "What is risk?" Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word! What did he write?

You always carry me in your hand, always with you, from your birth till your death! I am a tree. What Am I?

If you had three apples and four oranges in one hand and four apples and three oranges in the other hand, what would you have?

I am a five letter word and very strong. I become single when you remove two letters from me. What Am I?

Which is faster among the two? Hot or cold?

What is the major difference between a lighting and electricity?

What letter is next in this sequence? M, A, M, J, J, A, S, O,__

Divide 110 into two parts so that one will be 150 percent of the other. What are the 2 numbers?