Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Can you place three balls such that the equation shown in the picture holds true?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

The more it dries, the wetter it becomes. Can you tell what it is?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Replace the question mark in the picture below.