I'm not a doctor so I certainly make no professional assessment of your mental condition. However, I was given a problem by a mathematician several years ago. He said only the top 2% of the living population of the world could solve the problem. I figure heck, if the mathematician says only 2% of the population in the world can solve the problem, then those people must be thinking clearly. So we can use this to see if you are thinking clearly. If you can solve the problem then you should be thinking at least on par with the 2% that do in fact think clearly. Give it a try.
Five Pontiacs are parked side-by-side. Each car has a different owner. Each car is running a different engine, and each car is running different heads.
The question is, “who is running 7F6 heads on his car?”
The clues:
Jim Hand owns the blue car.
JohnV is running 670 heads.
Motordaddy has a GTO.
The yellow car is parked on the left of the red car.
The yellow car is a LeMans.
The 400 is running number 13 heads.
The green car has a 455.
The car parked in the center is a Firebird.
Glennsgto owns the first car.
The 421 car is parked next to the car running number 12 heads.
The car running 197 heads is parked next to the 455 car.
The TransAm has a 389 under the hood.
IgnitionMan has a 428 in his car.
Glennsgto’s car is next to the white car.
The 421 car is next to the Bonneville.
(note: only two percent of the living population on earth can solve this question – are you one of the top-two percent?)
Edit: In all seriousness, I would like to meet this guy in person because he inspired me so much!