Which president in Group B can be added to Group A? Why?

Group A: Andrew Jackson, Zachary Taylor, Ulysses Grant, Dwight Eisenhower
Group B: William Harrison, Theodore Roosevelt, John Kennedy, Lyndon Johnson, George Bush, Bill Clinton

Which country in Group B can be added to Group A? Why? It has nothing to do with spelling or pronunciation.

Group A: Argentina, Iran, Jordan, Netherlands
Group B: Bolivia, Finland, Mongolia, Pakistan, Rwanda, United States

Anagram teaser; same letters, of course.
The first of the words is the movement of a horse.
The second of the words is used to make honey,
And the third is the look of a zombie.

What are the words?

What is the meaning of this rebus?

cannon
ordnance
artillery
torpedo

Each statement describes two words that when fused together create a new unrelated word (not a compound word). The clues do not necessarily indicate in which order the two words are attached. Example: This is the oldness of a tablet (pill + age = pillage).

1) This is a canine's mother.
2) This is currently not there.
3) This is when pain is required.
4) This is a long time for a boar.

Each of the following sentences contains clues to a set of three words that are anagrams of each other (each sentence describes a different set).

1) The big lamp threw a dazzling light upon the royal robe.

2) The goose put his life in jeopardy when he ate the flowers in the plot.

3) Startled by the warning signal, Jack tumbled into the sap; yet he only had to lightly wash his hair to remove the residue.

4) As Ed traveled around the country...