Allow me to intercept this one...

1) If your car wants to move when yuo turn it on, your clutch springs are not wokring properly (not likely), or your idle is too high.
2) Should be about 1mm, give or take .25mm
3) If you mean your engine stops when you press the brake, then your clutch is having a problem or your idle is too high, just like answer to question 1.

If I've understood correctly your reasons for asking...