August 22, 2022 – William M. Briggs

There Is No Climate Emergency: So Say Us All

I am one of the more than one thousand scientists and related professionals who signed the World Climate Declaration, an effort started by a friend of ours Marcel Crok and…

Phil R on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
...and I saw 5 or 25 in the figure. The division answer never occurred to me. Got all the rest…
Phil R on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
If someone asks a question that is conditional on some evidence or rule that they conveniently (or purposely) leave out,…
McChuck on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
The answer for the pictured question is obviously '1', as the slot already has a '1' in it, which has…
Briggs on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
Mark, That's exactly it.
Mark on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
Wittgenstein gave some examples like this in his Remarks on the Foundation of Mathematics, a book I had no business…