What Adam and Eve do not have but the rest of the people have?

Replace the question mark with the correct number in below Picture:

Where do you go to learn how to make ice cream?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

How far can you walk into the woods?

My location can be determined by the below rebus.
So where am i ?

How many words can a pen with half refill write?

What is the coolest letter in the alphabet?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Which is faster, Heat or Cold ? Explain.