Ballpark — June 20, 2026
Answers to that day's 5 daily estimation questions.
Words in the average English speaker’s vocabulary
25,000 words
Active vocabulary is usually smaller than passive recognition.
Weight of the world's largest animal (Blue Whale)
200 tons
Their tongue alone can weigh as much as an elephant.
Professional football stadiums in the NFL
30 stadiums
32 teams, but 30 primary stadiums.
Total books in the Harry Potter series
7 books
From Sorcerer's Stone to Deathly Hallows.
Age of the oldest living tree (Methuselah)
4,850 years
A Great Basin bristlecone pine in California.