Archive · Thursday, October 1, 2026

Hunch #1

For each question, give a low and a high you are 80% sure the answer sits between. Tighter brackets score more; a miss scores zero. You can type 2 million, 3e9, 1.5k or 45%.

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DoublingQuestion 1 of 8

There is 1 paper clip on day 1, and the number doubles every day (2 on day 2, 4 on day 3). How many paper clips are there on day 43?

Low High paper clips

ClockworkQuestion 2 of 8

How many seconds are there in 54 weeks?

Low High seconds

OrdersQuestion 3 of 8

In how many different orders can 8 different books stand in a row on a shelf?

Low High orders

BirthdaysQuestion 4 of 8

42 people are in a room. Counting all 365 birthdays as equally likely (ignore February 29), what is the chance, in percent, that at least two of them share a birthday?

Low High percent

PackingQuestion 5 of 8

How many 1-inch cubes fit, packed perfectly with no gaps, in a box 3 ft long, 2 ft wide and 5 ft tall?

Low High cubes

Head mathsQuestion 6 of 8

Without a calculator: what is 804 × 8,260?

Low High

DiceQuestion 7 of 8

You roll a pair of fair dice 69 times. What is the chance, in percent, of at least one double six?

Low High percent

InterestQuestion 8 of 8

You put $1,000 in an account that pays 5% a year, added once a year, and never touch it. What is it worth after 31 years, in dollars?

Low High dollars

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