I rather doubt that there are any math problems at all which an average american teenager could solve and Newton could not, even if they are handpicked to use “recent” math.
Possible counterexample:
x^2 + 1 = 0
Newton didn’t believe in the square root of minus one.
Possible counterexample:
x^2 + 1 = 0
Newton didn’t believe in the square root of minus one.