Bracket #25 — the answers

The five questions from October 24, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.

The answers

Question by question

A question scores 100 minus the bracket’s width as a percentage of the track, if the answer is inside it, and nothing if it is outside. The tenth-of-the-track bracket below is the one a confident player was aiming for.

1. How many people live in India? 1.43B — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 900M to 2.3B is a tenth of the track and scores 90; the whole track scores 0.
2. How many letters are in the Greek alphabet? 24 — near the middle of its track. A bracket from 22 to 26 is a tenth of the track and scores 90; the whole track scores 0.
3. How much of the Earth’s surface is water? 71 percent — near the middle of its track. A bracket from 67 to 75 is a tenth of the track and scores 90; the whole track scores 0.
4. A car averages 79 miles per hour for 5.5 hours. How far does it go? 434.5 miles — in the upper third of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 350 to 550 is a tenth of the track and scores 90; the whole track scores 0.
5. How many eyes do most spiders have? 8 — near the middle of its track. A bracket from 7 to 9 is a tenth of the track and scores 90; the whole track scores 0.

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About Bracket

Bracket is Noggin’s estimation puzzle, on the second shelf: five questions a day with a number for an answer, bracketed rather than named, outside the daily line-up. How to play Bracket, or play today’s.