Ballpark #50 — answers
September 13, 2026 · five estimation questions and their accepted values
Question 1
How many active satellites orbit Earth, in thousands?
11
Climbing fast as constellations launch.
Question 2
How long is the Tour de France, in kilometers?
3400
Varies by year; usually 3,300–3,500 km.
Question 3
How many teeth does a great white shark have at once?
300
In several rows, replaced continuously.
Question 4
How many eggs does an ostrich lay per year?
50
Question 5
How many people work at the Pentagon?
26000
▶ Play today's Ballpark
Five new "how many?" questions every day. No signup.