Simple, but trick question. There are two squirrels.
Each with an infinite number of legs:
THEOREM: All squirrels have an infinite number of legs.
PROOF: Every squirrel has two legs in back and fore legs in front. Two plus fore equals six, which is an even number, but is also odd number of legs for a squirrel. The only number that is both even and odd is infinity. Therefore, all squirrels have an infinite number of legs. Q.E.D.
Makes it very easy to hoist their eleven-foot-long heads up those trees...
- NF