Did you solve it? Puzzles for blockheads
by Alex Bellos from Science | The Guardian on (#6699P)
Were you a Clevor Trever? The solutions to today's puzzles
Earlier today I set you these five puzzles from Mathigon's advent calendar. Here they are again, with solutions. Sorry if you came here to read about Ian Dury, but in recompense you get to get your head around these blocks:
1. Hit me with your four cube stick
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