Short Riddles and Answers

Question: When you close it, you see mysterious and funny looking images. But if you open it, the mysterious images are gone. What Am I?

Question: if Donald trump has 57 dollars and he spends 26 dollars and the cashier guy gives him 36 cents back, how much money does he have?

Question: You can rest on my pad without touching the keys.
I will sing all month long as long as you pay your fees.

What am I?

Question: I can be flipped and broken but I never move. I can be closed, and opened, and sometimes removed. I am sealed by hands. What am I?

Question: People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?