Ballpark #10 — answers
August 4, 2026 · five estimation questions and their accepted values
Question 1
How long is the Great Barrier Reef, in kilometers?
2300
Question 2
How many taste buds does a human tongue have?
10000
Typical range is 2,000 to 10,000; 10,000 is the classic figure.
Question 3
How much does the Eiffel Tower weigh, in tonnes?
10100
Question 4
How many countries share a land border with China?
14
Question 5
How many muscles are in the human body?
600
Approximately; counts vary by how muscles are grouped.
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