*Photo by RBerteig.* Take a break from “serious” math and have a little fun today with some classics of recreational mathematics. Do you have a favorite math or logic fallacy? Please share it in the *Comments* below.

## Story Problem Fallacy

**Three Men in a Hotel Room**From the comments section at Let’s Play Math! blog.

## Algebra Fallacies

**Classic Fallacies**Can you find the false step in each of these “proofs”?**How to Double Your Salary Using an Algebraic Loophole**Another version of the beginning algebra fallacy, from WikiHow.

## Geometry Fallacies

**Dissection Fallacy**63 = 64 = 65 from WolframMathWorld.**What Is Wrong? (Rouse Ball’s Fallacy)**A geometry “proof” from Cut the Knot.

## Edited to Add

I found this spoof of a famous number theory joke in my feed reader this afternoon…

**Proof: all April fools’ jokes are interesting**“Let S be the set of uninteresting April fools’ jokes…”

Claim your two free learning guide booklets, and be one of the first to hear about new books, revisions, and sales or other promotions.

I suppose upon using this clock, we will get younger by the seconds. Hurray! I can rectify all the major mistakes made before using back the conventional clock…

LOL! I wish it were so.

Good way of telling, and nice piece of writing to obtain data

regarding my presentation topic, which i am going to convey in school.