The skills you are required to have for a impressionist is to be able to make your voice go high and low and you have to get the right pitch
Skills for a comedian is taking any topic and making something funny about it and having a funny personality on stage
To train for this you simply just have to practice making your voice go high and low and getting the pitch right ,and for being a comedian you should just jot down any funny thoughts thAt come to your head
Daily activities include improv and drama classes those will help improve your voice and coming up with funny thoughts as you go
If you were to do 5 impressions it would take 150 seconds which is half of five minutes. And if I were to tell 15 jokes that would take another 150 seconds
If you multiply 15 by 10 you will get 150 if you take 5 times 30 you will also get 150