T-Rex: One brother always lies and another brother always tells the truth! What ONE question can you ask either of them to find out which is which?
T-Rex: SNORE. We've all heard this riddle.
T-Rex: What we really need are..

T-Rex: ...More Complex Alternatives To The Brothers Who Always Lie And Always Tell The Truth!

T-Rex: One brother lies every second sentence, and the other only tells the truth about himself. BAM. More interesting, still solvable. You -
Dromiceiomimus: One bro always lies and the other always stands.
T-Rex: No, that's -
Dromiceiomimus: One brother lies but only about his weight, and the other is pitching you on his multilevel marketing scam.
T-Rex: I don't -

Utahraptor: Each claims they're the REAL brother and the other is an alien mimic. You have one bullet left.
T-Rex: NO, stop -

Utahraptor: One bro is 5 horses in a tremendous trenchcoat, while the other is a morass of constantly-shifting beetles chittering in a stolen skin!
T-Rex: PLEASE STOP
Utahraptor: One bro has a mouth filled with too many teeth while the other has mouths with an average amount of teeth, but they're EVERYWHERE.

Off panel: One bro is heavy and in a yellow "W" cap, and the other is lanky in purple cap with an upside-down L; they race karts against their enemies.
T-Rex: WAIT!
T-Rex: For some reason, I feel they could support any number of media franchises and the tall one deserves his own game for sure??