Now i'm thinking of studying mathematics or a mathematics related subject at university, however i can't seem to let go how bad i am at puzzles/riddles. In maths tests I always get a good grade (90%+), I read around the subject etc and genuinely really enjoy it, however when i get a puzzle or a riddle which are online or in a book, i just can't do it. For example: "You need to boil eggs for exactly 9 minutes or else the visiting Duchess will complain, and you will lose your job as head chef. But you have only 2 Hourglasses, one measures 7-minutes, and the other measures 4-minutes. How can you correctly measure 9 minutes?" I couldn't figure that out, i had to look online to find the solution. Is riddles/puzzles like this at all related to a mathematics degree? Is there anyway i could improve on these skills, or are people just naturally good at these things.