many things like having friends, being loved and being hot
Jem and Scout lie to Atticus about their nighttime visit to the Radley house, which resulted in Nathan Radley shooting at them. They told Atticus that they were playing a prank on a schoolmate instead.
The excuse given was that Jem's pants got caught on a fence and he had to take them off to get free. However, this story was later revealed to be a lie, and the pants had actually been left behind at the Radley house after a mysterious encounter with Boo Radley.
yes jem is courageous
Dill and Jem see the shadow of Atticus Finch when Jem is on the porch of the house.
he attacks Jem which breaks Jem's arm, then is stabbed, presumably by Jem or Boo Radley, who brings Jem back home
a camellia flower, like the ones of hers that Jem destroyed earlier. She did that to show Jem that she wasn't as awful of a person as Jem (and Scout) believed she was.
Jem is really Jerrica Benton, disguised by a futuristic holographic projector.
Jem Stone is 5' 4".
Jem Godfrey was born in 1971.
Jem Poster was born in 1949.
Jem Broadbridge was born in 1795.
Jem Broadbridge died in 1843.