I had received the below t-shirt as part of a summer camp a few years ago. I finally actually looked at what it said and wondered if the question actually had a solution or it was just a trick. Does anyone have any ideas? (If the image does not load, it basically says, if we have what I believe i...

Asking for some help as I've created puzzles for a new book and now am looking for them to be tested (and to get some feedback for improvements). On Sunday, I'll be posting the puzzles I think are the most challenging yet, so stay tuned. Hints provided if you ask:

The cop tries to catch the robber. They both move on the plane and they alternate turns. The robber moves in any direction to a new point at distance exactly 2. The cop moves in any direction any distance at most 1. To give the cop a chance to catch the robber both of them are confined to a disk ...

Which two big ones are missing here? 57,39,36,4,73,77,84,90,30,7,86,73,6,33,71,57,79,89,27,9,4,15,29,35,88,84,31,3,62,69,14,32,49,33,80,59,62,48,76,83,32,46,47,4,5,38,79,100,47,19,76,97,2,32,99,74,20,8,31,3,93,75,61,17,78,56,18,12,85,65,0,23,8,15,46,0,98,80,58,65,100,76,82,80,37,52,0,13,37,2,54,1...