Trivia Quiz #37: Solve the Puzzle Cover

I've talked a bit in the past about Mort Weisinger's fondness for what I call puzzle covers. These covers show something bizarre and unexpected, which he hoped would compel the kid to at least take the magazine off the rack and flip through it to find out why the event depicted on the front was taking place. Here's your opportunity to match wits with Mort:

1. Why is this happening?

a. It's a plot to fool some aliens
b. It's the result of Red Kryptonite
c. It's actually a Bizarro Supergirl
d. It's a plot to fool some crooks

2. Why is this happening?

a. It's a plot to fool some aliens
b. It's an effect caused by a comet
c. It's an effect of Red Kryptonite
d. It's actually Bizarro Superman

3. Why is this happening?

a. It's a plot to fool some aliens
b. It's a plot to increase the Daily Planet's circulation
c. It's a plot to fool some crooks
d. It's an effort to save Superman's secret identity

4. Why is this happening?

a. It's a plot by Mr Mxyzptlk
b. Superman really likes Jimmy's guitar licks
c. It's an effect of Red Kryptonite
d. It's a scheme by a saboteur

5. Why is this happening?

a. It's a plot by Mr Mxyzptlk
b. Jimmy really has a secret super-punch
c. It's a plot to fool some crooks
d. It's an effect of Red Kryptonite