Archive
Issues
Past puzzles stay playable. Only today counts toward a streak — once you have an account. Topic chips are filters, not difficulty labels.
2026-09-14 · Estimation
Stack $1 billion in $100 bills — how tall is the stack?
1 played · 0% got it right
2026-09-13 · Estimation
A million seconds is about 11.5 days. How long is a billion seconds?
1 played · 0% got it right
2026-09-12 · Estimation
Fold a sheet of paper in half 42 times — how thick is the stack?
1 played · 0% got it right
2026-09-11 · Estimation
Same game, but count to one billion. How long?
1 played · 0% got it right
2026-09-10 · Estimation
Count out loud to one million, one number per second, no breaks — how long?
1 played · 0% got it right
2026-09-09 · Estimation
How many piano tuners work in Chicago?
0 played