puzzlement
A feeling of confused wondering while trying to understand something.
Puzzlement is the state of being confused or bewildered by something you can't figure out. When you're in a state of puzzlement, you might furrow your brow, tilt your head, and think hard about what's going on. Picture finding a note written in code, or watching a magic trick and trying to work out how it was done: that confused, searching feeling is puzzlement.
The word captures that specific moment when your brain is working hard to understand something but hasn't cracked it yet. A detective examining clues at a crime scene experiences puzzlement before solving the case. A student might look at a challenging math problem with puzzlement until suddenly understanding how to solve it.
Puzzlement isn't the same as simply not knowing something. It's the active state of wrestling with a mystery or problem. When your teacher expresses puzzlement about why the class did poorly on a quiz, they're genuinely trying to figure out what went wrong. The word suggests you're engaged and curious rather than just blank or indifferent. You care about finding the answer, which is why the confusion bothers you.