Archive · Monday, October 12, 2026

Hunch #12

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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InterestQuestion 1 of 8

You put $250 in an account that pays 8% a year, added once a year, and never touch it. What is it worth after 21 years, in dollars?

Low High dollars

Head mathsQuestion 2 of 8

Without a calculator: what is 693 × 5,518?

Low High

PackingQuestion 3 of 8

How many 1-inch cubes fit, packed perfectly with no gaps, in a box 5 ft long, 4 ft wide and 3 ft tall?

Low High cubes

FoldingQuestion 4 of 8

A sheet of paper 0.1 mm thick is folded in half 13 times (pretend that is possible: ordinary paper is hard to fold more than 7 or 8 times). How thick is the folded stack, in metres?

Low High metres

DoublingQuestion 5 of 8

There is 1 lily pad on day 1, and the number doubles every day (2 on day 2, 4 on day 3). How many lily pads are there on day 27?

Low High lily pads

OrdersQuestion 6 of 8

In how many different orders can 7 different books stand in a row on a shelf?

Low High orders

DiceQuestion 7 of 8

You roll a pair of fair dice 88 times. What is the chance, in percent, of at least one double six?

Low High percent

CalendarQuestion 8 of 8

How many days after January 3, 1888 is January 3, 1899?

Low High days

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