A maths symbol is hidden in the below Bar Graph. Can you decipher it?

What has a ring but no finger?

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

A letter is hidden in the image in plain sight. Can you spot it in 6 seconds? Test your eye power now!

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

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

Count the number of lines in the image below ?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

What does it mean?