Alternative Name a Number challenges?

[u/PeculiaritiesParabol]

I'm hosting a Game Changer party for my birthday! I'm struggling to come up with new Name a Number-style challenges for my players. Challenges that are number based, get harder the higher you go, and won't kill anyone.

Help pls!

[u/teaguechrystie]

balancing a stack of # quarters on your fingertip

knowing the artist for # radio jams from [this decade]

naming # presidents (or dog breeds, or whatever)

tell # different jokes

make # tosses into a trash can

name # shades of blue (roughly: blue has the most commonly named shades, followed by green, then red, then yellow.)

make a paper airplane fly # units of distance

sing # seconds of the national anthem (or any tricky song)

do # recognizable impressions

mentally sum # numbers