Superhero Trivia

Prince Namor, the Sub-Mariner.

Ethyl Chloride. However, it has rarely been used by his enemies, unlike Superman's kryptonite.

Northern Alberta, Canada.

One of the few decisive victories over Juggernaut was by Spider-man who, by blinding his eyes, caused him to fall into a massive (i.e., 40-foot deep) slab of wet cement. Professor X also defeated Juggernaut; however, by using his psychic powers but only after the X-Men were able to remove Juggernaut's helmet. Hulk also defeated him in a "no-holds barred" near-death match in the desert. Other defeats came by Spider-woman and Storm, who blasted him out to sea, and Wonder Woman who with two strong blows knocks off his helmet and then knocks him out cold.   

By self account, the Flash can reach a top speed of Mach 3.3 or 2,532 mph.

The Mysterious Melter, a formidable foe, was able to melt portions of Stark's iron suit within just seconds using his patented device. Stark immediately fled back to hash together a redesign.

The Cupid of Crime.

Bruce Wayne was investigating the mysterious tragic deaths of several members of the Grayson family at the circus. It was during his investigation that Wayne met Dick Grayson and soon took him under his wings, teaching him martial arts, technical/gadgetry skills, and detective prowess.

You're correct if you called heads. It's a double-headed coin that Two Face recurrently uses to make consequential decisions.

Michelle Pfeiffer (Batman Returns, 1992), Halle Berry (Cat Woman, 2004) and, most recently, Zoe Kravitz (The Batman, 2022),

Tobey McGuire squeaked by Tom Holland, with 36.1% versus 35.2% of all votes. Andrew Garfield came up with the remaining 28.7%.

Columbia University in New York’s upper west side.

Their battles, nearly every time, end with Hulk winning comfortably over the Thing or it comes to a draw before a winner is declared. The only times the Thing triumphed was with help from the Fantastic Four, Hulk was weakened and/or the Thing was powered up.

Castle was on a path towards priesthood but left the seminary and ultimately decided to join the U.S. Marines and Navy Seals. He completed four tours of duty, dating back to Vietnam, and received numerous awards for his dedication and sacrifice to his country. At one point early on, he crossed paths with Captain America.

A very sad and lonesome Wolverine, appearing in costume while the others are in street clothes. Weird.

William Marston, who developed her character, wanted to name her "Suprema" but his comic editor convinced him to go with "Wonder Woman" instead. Marston, oddly enough developed the lie detector test, which presumably influenced Wonder Woman's ability, using her lasso, to make people speak the truth. 

Four-color printing was used in early comic books. The long and the short of it is that the superheroes were assigned primary colors, like red, blue and yellow  (i.e., Superman), while the villains were cast in secondary colors such as green and purple -- think along the lines of Poison Ivy, The Riddler, and Lex Luthor.

There are/were five including Alfred Pennyworth and Dick Grayson along with Jason Todd, Damian Wayne, and Time Drake (a.k.a. the 3 "baby bats"),  

Barbara Gordon (Batgirl) is the daughter of Commissioner Jim Gordon of the Gotham City Police Department.

The fictional planet, Krypton.