How many legs does an insect have?
Answer6
All adult insects have six legs; spiders, with eight, are arachnids, not insects.
Challenge · Facts & stats
Six Day facts & stats
7 fact-checked facts about six-day sprints and the number six, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
How many strings does a standard guitar have?
Answer6
The standard guitar has six strings; the bass guitar usually has four.
Going deeper
Why is 6 called a 'perfect number'?
AnswerIt equals the sum of its divisors 1, 2 and 3
A perfect number equals the sum of its proper divisors: 1 + 2 + 3 = 6. The next is 28.
Which element has atomic number 6?
AnswerCarbon
Carbon has six protons; boron has five, nitrogen seven and oxygen eight.
What kind of symmetry do snowflakes typically show?
AnswerSix-fold
Water molecules freeze into a hexagonal crystal lattice, giving snowflakes six-fold symmetry.
Expert level
How many carbon atoms form the ring in a benzene molecule?
Answer6
Benzene (C₆H₆) is a ring of six carbon atoms, each bonded to one hydrogen.
What is 6 factorial (6!)?
Answer720
6! = 6 × 5 × 4 × 3 × 2 × 1 = 720; 5! is 120 and 7! is 5,040.
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