What's the hardest math exam you have taken ?

Question

The hardest math exam that I have ever taken was the Putnam exam. To put it in retrospective, it was more difficult than the olympiad exam. I took this exam during my freshman year in college. There were 6 problems, and the grading was based on right or wrong (no partial credit). Getting 1 or 2 problems correct out of 6 is pretty good.

Answer 1

i took this weird "pink kangaroo" test that put me in the top 200 in the country (U.K) for maths when i was 16

we had something like 3 hours to do 10 questions, which relied on logic aswell as maths. it was hard