Hard Riddles and Answers

Question: Occurring once in a hundred years and once in thousands. But never in a day or a year or a century.

Question: Nathan has math 4 times a week. If he has math 8:00 Monday, 9:20 on Tuesday, 10:40 on Wednesday, and 1:20 on Friday, when does Nathan have math on Thursday?

Question: Having one, means having something to follow. Once you question it, it means having none. People seek it, but some do and some don't find it. What is it?

Question: Having some, you want more. But when you have too much of it you feel bored. Everyone people wants it, and some have to much of it. What is it?

Question: When angry it turns red, cold it turns blue and pale when scared.

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: She lay on her soft bed. She has envy toward us. Why?

Question: People pick me, and watch me until they give me power. Then they don't stare in my eyes. What am I?

Question: People pick me, and watch me until they give me power. Then they don't stare in my eyes. 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?