-1. How many teeth does an adult human have?
-2. Who was the only 20th century US president to graduate from the West Point Military Academy?
-3. What incendiary device is named after a Russian politician?
-4. What physicist discovered the Uncertainty Principal (or indeterminacy)?
-5. What piece of photographic equipment was invented by Edwin Land in 1948?
-6. From which city did Napoleon make his famous retreat in 1812?
-7. What name is given to drugs such as atenolol and bisoprolol which reduce blood pressure and control abnormal heart rhythms?
-8. What type of fruit is a shamouti?
-9. In Germanic legend, who was the queen of Issland who had superhuman strength and vowed to marry only he who would prove himself stronger?
-10. Who wrote the opera Don Giovanni?
-11. Ketty Lester had the original 1962 hit version of which song?
-12. Who is this?

12. Alice Cooper

3. Molotov cocktail

Ladies - I salute you both!

7. Beta blockers

2. Dwight D. Eisenhower

...and two more little gems!

6. Moscow rings a bell?

1. Well, I have about ten left

Bernie

What a clever little bell!

And I know the problem, Bernie

10. Mozart

Nice one, Mad!

4. Heisenberg

1. 32

5. The Land Camera, also known as the Polaroid Camera.

11. Love Letters

It is also #11 on the AM Gold 1962 CD that I lifted this answer from.

All spot-on, ladies and gents!

There's a stroke of good luck, oldbroad!

8. It's a jaffa orange given the Arabic name shamouti

Bernie

Good one, Bernie!

9. Brunhild

Thanks, Koala!