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Estimate the Number of...

Each of these questions has an answer between 100 and 999. Can you figure out what the answer is? We'll accept it if you're close enough, that is, within the specified margin of error. But once you make 5 mistakes, you're done...
Quiz by
cathlete
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Last updated: September 22, 2025
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First submittedSeptember 21, 2025
Times taken47
Average score25.0%
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How many...
Margin of Error
Answer
...member states in the United Nations?
±2
193
...elements on the periodic table?
±3
118
...original Pokémon are there?
±5
151
...bones in the adult human body?
±10
206
...hours are in a fortnight?
±25
336
...medals did the US earn in the 2024 Olympics?
±25
126
...tiles are there in a standard game of Scrabble?
±25
100
...Popes have there been?
±50
267
...episodes of The Office (US) are there?
±50
201
...bridges does the city of Pittsburgh have according to a 2006 study?
±75
446
...subway stations on the NYC metro?
±100
472
...goals Messi scored for Barcelona?
±100
672
...calories are in a McDonald's Big Mac (US)?
±100
590
...Michelin Star restaurants are there in France (2025)?
±100
654
...D1 NCAA institutions are there?
±150
365
...babies were born each hour (on avg.) in the US in 2024?
±250
413
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11 Comments
MasterRocket
+1
Level 83
Sep 21, 2025
I think you forgot the yellow box?
cathlete
+2
Level 78
Sep 21, 2025
Yep, thanks!
MasterRocket
+1
Level 83
Sep 21, 2025
Great!

It's simple but having different margins of error makes it interesting, you get my nomination!

cathlete
+2
Level 78
Sep 21, 2025
Thanks! Do you feel any of the margin of errors should be adjusted?
MasterRocket
+2
Level 83
Sep 21, 2025
Maybe the bridges one? It's a pretty niche question. Otherwise all seems fine.
KiloNova
+1
Level 61
Sep 21, 2025
Cool quiz! However, maybe add a yellow box, you can get several answers from one number.

Edit: Well guess MasterRocket beat me to it

cathlete
+1
Level 78
Sep 21, 2025
Yeah, I was a bit distracted and didn't test it before publishing, but it's added.
BautyArg
+1
Level 52
Sep 21, 2025
original idea!
cathlete
+1
Level 78
Sep 21, 2025
Than you!
Stewart
+1
Level 68
Sep 22, 2025
Your hours in a fortnight has a typo. It is not 366 but 336. 14 x 24 is 336.
cathlete
+1
Level 78
Sep 22, 2025
Thank you! I even missed this question when I took the quiz myself because I entered 336
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