Each of the following sentences contains clues to a set of three words that are spelled the same, except for one letter (each sentence describes a different set). Example: malt, melt, molt.
1) Instead of buying one baked good at the restaurant, Mark bought a whole box.
2) Do not decline to prove the falseness of the necessity of a shelter.
3) Neil loves to brag about how he killed the animal with an explosion.
4) The uncommon rabbit should not challenge the common tortoise.
cake = baked good
cafe = restaurant
case = box
refuse = decline
refute = prove the falseness of
refuge = shelter
boast = brag
beast = animal blast = explosion
rare = uncommon
hare = rabbit
dare = challenge
Today's brain teaser courtesy of Braingle.com.