196

You first think it's 25% because 1/4, then you see there's two 25% options, so 2/4 and now you're at 50%. But wait a minute, now 50% is the right answer so it's 1/4 so 25%...

I'm wondering if the correct answer somehow becomes 60% too since then you could've progressed through all the answers without any of them actually ending up as correct

Logical progression. You see four answers and think 25%. You see two 25%s and think 50%, but then you don’t know how to square that because 50% is there too!

Delightful, had to come to the comments after a minute - certified brain* breaker!

*peabrain at least