Barry Allen can steal speed in comics, but it's not a common or straightforward ability. It often occurs within complex storylines and with specific conditions and consequences.
In certain comic arcs, Barry takes actions that lead to the destruction of the Speed Force. This often has significant consequences for his powers and the superhero universe.
Yes, Barry Allen often demonstrates speed thinking in comics. It's one of his superpowers that helps him process information and make decisions at superhuman speeds.
Barry Allen's death in the comics is a complex situation. Sometimes he does die, but often there are plot twists and resurrections as part of the ongoing comic narrative. It all depends on the creative direction of the writers and the demands of the story at that time.
In certain comic versions, Barry Allen is indeed identified as Jewish. This aspect is sometimes incorporated into his character background and story arcs.