Help!!- Give 10 riddles (with answer)

The hardest you can find please need this ASAP!

Will give brainliest to first answer :))

1. Riddle: What is so fragile that saying its name breaks it?
Silence.
2. Riddle: What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
A river.
3. Riddle: What can fill a room but takes up no space?
Light.
4. Riddle: If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?
A mirror.
5. Riddle: What is the capital in France?
The letter F is the only capital letter in France.
6. Riddle: The more you take, the more you leave behind. What are they?
Footsteps.
7. Riddle: I turn once, what is out will not get in. I turn again, what is in will not get out. What am I?
A key.
8. Riddle: A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
The river was frozen.
9. Riddle: What breaks yet never falls, and what falls yet never breaks?
Day and night.
10. Riddle: What goes through cities and fields, but never moves?
A road.