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

Group A: William Harrison, Zachary Taylor, James Garfield, John Kennedy

Group B: Thomas Jefferson, Abraham Lincoln, Ulysses Grant, Warren Harding, Franklin Roosevelt, Jimmy Carter

What does this rebus represent?

The late Dan DeLion: "It's nice that someone mows the cemetery grass"
The recently deceased Mary O'Nette: "It's enjoyable just lying around"
The dearly departed Otto MacAnic: "I'm happy not having to share a room"
The just interred Anna Robic: "I appreciated the beautiful eulogy"

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 sleep relative.
2) This is a masculine painting.
3) This is when a snake stops moving.
4) This is body waste from a fruit.

What does this rebus describe?

Coffee @ 120 degrees
Wine @ 40 degrees

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

Group A: forty, grape, react, rouge
Group B: carat, claim, coast, crass, curse

Per this rebus, what is indicated by item #5?

1) . echo
2) . feedback
3) . reflect
4) . reply
5) .