Suggestions for fun problem-solving type books

[etotheipi]

I was just looking to see if anyone knew of a book pitched at the pre-university to undergrad level which contains slightly more unconventional Physics/Maths problems, but is not as formal as some of the old warhorses like Irodov.

Something similar to what I'm looking for would be Professor Povey's Perplexing Problems, since I also liked how it spent a lot of time discussing alternative solutions and background for each of the questions. And that the questions were not exclusively mechanics, but there was also a bit of thermodynamics and electricity thrown in. Some of the problems given here are also of a similar style.

Thanks a bunch!

 

[jedishrfu]

I found this on Amazon:

https://www.amazon.com/dp/0521270731/?tag=pfamazon01-20

and of course the venerable Schaums Outline series:

https://www.amazon.com/dp/0071763465/?tag=pfamazon01-20

 

[etotheipi]

I found this on Amazon:

https://www.amazon.com/dp/0521270731/?tag=pfamazon01-20

and of course the venerable Schaums Outline series:

https://www.amazon.com/dp/0071763465/?tag=pfamazon01-20

That's great, thanks for these. They both look like they're pitched at a good level as well!