Can you answer these riddles?

[LaurenT2]

What can be heard and caught, but never seen?
What has four legs, one head, and a foot?
I can run constantly without ever getting tired. When I run, I frustrate people and drive them crazy, yet I don't even have to move to irritate you. What am I?
How many sides does a circle have?

 

[AndreDuran]

you tell me

 

[fatiimaq08]

Yes, I can answer those riddles.

 

[mmßlÞøñ†smm]

1. A remark
2. A bed
3. A clock
4. 1

 

[asmeena]

Nice riddle....