To unlock these three achievements, you need to cut a total of 2000 ropes. This should be the last achievement you attempt to unlock, as your grind towards earning many of the other achievements will also count towards this one. The best level to grind these is 1-7, which has a total of six ropes right from the start. Cut all the ropes quickly (in a circular fashion) and instantly hit the button to restart the level. Repeat until you unlock the achievement. No need to go any further into the level as it saves your cuts instantly. This will take only a few minutes to grind.