18 / 20. I’m. I’m quite sure how I thought a 3rd was a fifth.
After a bit of a disappointing grade 1 test, 3 or 4 mistakes iirc, actually surprised myself with the full 20 here.
Full 20. Quite surprised that I can actually do this stuff
20/20 this time. I sometimes check my answer by “singing” up the scale - not sure if that’s cheating ? 
Well, if it’s cheating, you have my company in that nefarious activity. I “can’t sing”, yet I can do as you describe. Maybe there’s hope yet for singing!
Dear friends, tell me whether it is cheating or not!
I used my guitar and played the notes that Justin was playing, and guessed the answers by playing them. Should I try to sing/hum the tone to find the intervals? Is that the right way of doing this test?