When we see 2 but call 10?

How can you make a TV, a bed, a dog, and a car liquid?

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 paper it was a blank sheet of paper with a solitary question on it: 'What is the 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?

A blonde put eyeliner on her head. Why?

By what process could you make a 'Tea-Table' into food?

What is the fastest way to double your money?

What has hands, but can’t clap?

What can you see in the middle of March and April that you can never see in any other month?

I am quite hot but become too cold if you remove the first two letters. What am I?

What do you get if you add 2 to 100 four times?