21Rye and bourbon
The differences between Rye and Bourbon is that Bourbon has to legally be at least 51% corn.
22Tortoise and turtles
The major difference between tortoises and turtles is that tortoises dwell on land, while turtles live in the water some or nearly all of the time.
23Cups and mugs
There are actual differences between cups (lighter, thinner, 6oz, always has a saucer and handle) and mugs (thicker, more than 8oz, handle optional).
24Hurricane and typhoon
The only difference between a hurricane and a typhoon is the location where the storm occurs. In the North Atlantic, central North Pacific, and the eastern North Pacific, the term hurricane is used. The same type of disturbance in the Northwest Pacific is called a typhoon.
25Caffè Latte and Cappuccino
The only difference between Caffè Latte and Cappuccino is the ratio of steamed milk to milk foam.
26Vowels and consonants
The difference between vowels and consonants is that you impede the flow of air in some way for consonants, but not vowels.