Daily math & logic puzzles ☄️ Answer before the meteor lands. We bust fake viral puzzles too.
Joined May 2015
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This square root "trick" is going viral. It works for 25, 196, 64 and 289... 🤔
Can you find a number that BUSTS it? 👇
☄️ The meteor has landed: 23! Only the 4 gets multiplied by 0, so 20 − 0 + 3 = 23.
First to dodge the 0 trap: @duongnguyendb7 🎯
2
☄️ The meteor has landed: C! Your son has two grandfathers. One is your dad, the other is your partner's dad, with no blood link to you 🧬
First to crack it: @5900Eric 🎯
6
A sheep on a 2 m rope, tied to the corner of a 1 m × 1 m shed. How much grass can it reach? 🐑
1
1
35
BUSTED #2, idea by @5900Eric 🎲 This cube root "trick" works for 125, 216 and 343... but fails at 512. Only 3 more cubes in existence pass. Can you find them? 👇
☄️ The meteor has landed: 2744, 3375 and 4096 (∛ = 14, 15, 16). 2+7+4+4−3 = 14 ✅
After that, it never works again. Busted! 💥
Idea & spreadsheet check: @5900Eric 🎯
22
☄️ The meteor has landed: 13!
Put the center at 0: the corners (−12, 5) and (5, 12) are both 13 away. A hidden 5-12-13 triangle, twice 😏
First to nail it: @tag_sonu 🎯
15
☄️ The meteor has landed: 5! 2556 → 2 + 5 + 5 + 6 = 18, a multiple of 9.
First to crack it: @5900Eric 🎯
☄️ The meteor has landed: MISS! The tip lands √(8² − 4²) ≈ 6.93 ft out, under an inch short of the kid 😅
First to dodge the "8 > 7 so it hits" trap: @ThePuzzledPlum 🎯
☄️ The meteor has landed: 49! × before +, so 4 + 5 × 9.
First to dodge the 81 trap: @5900Eric 🎯
30
☄️ The meteor has landed: 30 squares! 16 + 9 + 4 + 1.
First to count them all: @5900Eric 🎯
14