What Rule?

Last Problem:

Two men climb two ladders, each at the same speed, but they are getting farther apart. How?

Answer:

The ladders are at exact opposite ends of the earth, so the men climb in two different directions, OR even if they are next to each other or further apart, due to the curvature of the earth, they are still going slightly away from each other, perhaps only a very small amount.

Today’s Problem:

What rule can you apply to each of the following words to make new words of them all?

adds, ants, inks, ohms, sheer, star

What is it?

Last Problem:

What is the common link between these words:

threshold, taciturn, signature, redress, misspelling, lambaste, hockey, decoration

Answer:

Each word is made up of two shorter words which are joined by a common letter. The second word starts on the same letter as the first word ends on. threshold => thresh and hold, taciturn => tacit and turn, etc.

Today’s Problem

A tiger, a snake, a moose , a bear, and a turtle have one. An eagle, a walleye, and an elephant have two. Humans don’t have any. What is it?