This is similar to the SW Film Trivia Game I started in Classic Trilogy. I'm going to throw out five questions, and if you answer one correctly, you ask a question to replace it. These questions can be related to any aspect of GIJoe, but please be sure that if it's a story-related question that you specify comics or cartoons, because they tend to differ widely (such as Cobra Commander: 1,000 year-old snakeman or disgruntled used car salesman?).
1) (Comics) Which high-ranking Cobra has a biological son or daughter on the GIJoe team, and what is the name of his (or her) kid?
2) (Cartoons) Who or what was Cold Slither?
3) (Toys) The VAMP Mark II and Cobra Stinger both featured drivers who were repaints of earlier characters. Who were they?
4) (Comics/Toys) Who is the only character created for the current (Devil's Due) comic to be made into an action figure?
5) (Toys) Stephen King and his son created a character in the 1980s, and King wrote his/her/it file card. What is the character's name?