Rhyming FUN anyone?? Can you supply two words that rhyme for each of these clues??

Question

1) Old TV sleuth that puts on a ton of weight.

2) A tiny bit happy

3) Decided not to dig

4) She's speedy but air headed (_____but_______)

5) prehistoric inebriant

Answer 1

2. A tad glad

4. quick but thick

Answer 2

3- excavate debate

5-venerable potable

-or-

archaic narcotic

Answer 3

1. Jumbo Colombo

2.  Tad glad.

3.  Chose repose.  Excavation negation (Well, it is different!)  OK, one last shot. "Evade spade."

4. Rapid vapid.

5. (Primal) Ooze booze.