When Carter Hall speaks of needing "something stronger than tea," he is not shaved, but when he retrieves the liqueur he is neatly shaven only to return in the next shot to being burly once more.
Deadshot engraves the target's name on the cartridge case, not the bullet (projectile), so there should be no name for Clark to see, or Mercer's ballistics team to reconstruct.
Lois left a voicemail for Perry White when she got to the dig site, but she was in the middle of the desert, with no cell towers around. She would ave had to use a satellite phone to call Perry White, or even leave a voicemail.
In the newspaper article regarding Lois' move to Africa with Perry White, Perry's name is mistakenly spelled "Parry."
When Clark reveals the letters engraved on the bullet he says: 'A, R, N, T' but Mercer confirms the letters should have been 'R, A, N, T' as in 'Kat Grant'. Later on it is revealed that the target is Clark, where the letters A and R are from Clark, and N and T are from Kent.
In the newspaper article about Lois, Perry White's name is incorrectly spelled as Parry White.