Posts Tagged: silly puzzles

The brain, while swimming

Desultory math again, and the results seemed so weird in my head that I worked it out in a spreadsheet. I thought that if parents keep trying for a boy, it will result in a great surplus of girls (or vice versa). But I was wrong! Let’s assume a spherical-cow society: all parent couples consist

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Tiny thinky-thing

I don’t know where I got this but I suddenly thought of it. Nice easy puzzle. There’s a windowless room with 3 light bulbs hanging in random places but low enough for you to touch. All are off. Outside the room there are 3 light switches, numbered 1 to 3, clearly marked with On/Off positions,

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Here’s a Christmas toy

Christmas Tree Light Up game. I found it when I wanted to play Deep Freeze, which lives (or at least is linked) on the same site. That I call it a toy rather than a game is because it’s non-competitive — it isn’t even scored on this site, though I found it on another site

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Some desultory logic

(Or: what my brain does while my body swims.) I have a pack of cards with letters on one side and numbers on the other. I lay out four of them on the table, like this: E 6 J 11 I tell you “Each card with an even number has a vowel on the other

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