The five questions everyone played that day, in the order they were asked, with the correct answers and why they are right.
Roughly how many hours will someone who lives to 80 have been alive?
A year has about 8,766 hours (365.25 × 24), so 80 years is about 701,000 hours — under a million.
25% of players got this rightSource: en.wikipedia.org
Which gas do plants take in from the air to make their food?
In photosynthesis, plants use sunlight to turn carbon dioxide and water into sugar, releasing oxygen as a by-product. It's the reverse of what animals do when breathing.
79% of players got this rightSource: en.wikipedia.org
Roughly how far is it around Earth at the equator?
Earth's equator is about 40,075 km around. The metre was originally defined so that the distance from pole to equator was 10,000 km — which is why it's so round.
36% of players got this rightSource: en.wikipedia.org
You have 3 pills and take one every 30 minutes, starting now. How long until you've taken them all?
You take pills at 0, 30 and 60 minutes, so all three are gone after 1 hour. Three events have only two gaps between them — the same fencepost logic as posts and rails.
47% of players got this right
Is 0.999… (the 9s go on forever) equal to 1?
1/3 = 0.333…, and 3 × 1/3 = 1, while 3 × 0.333… = 0.999…. There is no number between them, so they are the same number.
18% of players got this right
