Enroute

Question 1

Name the mandatory ATC reports

Answer 1

Position 
Time
Altitude
Estimate to next reporting point
Next reporting point

Question 2

Name the mandatory reports to ATC when in radar contact

Answer 2

SAMHAP
Safety items
Avionics issues
Missed approaches 
Established in Holds
Altitude changes
Performance (changes of +/- 10kts or +5% out if you're unable to perform 500fpm climb/descents)

Question 3

Name the mandatory reports to ATC when not in radar contact

Answer 3

3 Cs
Compulsory reporting points
Corrections to ETA +/- 3 minutes
Crossing the FAF or OM