Also, Truth is normally human sized, but he can definitely change his size, like, it shouldn't be a problem for him. He is everything that exists in FMA verse and thus is Omnipresent. So I think Size Manip should be fine for him.
Osmar117 wrote: because the truth is omniscient if it isn't (since it was tricked by ed at the end of the series)
so it confirms that it is not omniscient (it would be nigh-omniscient)?
I think it's far more likely that Truth allowed himself to get "tricked". Besides, even the most blatantly omniscient characters have moments when they don't use it deliberately. Umr-at-Tawil for instance, allows Carter to answer his question despite knowing the answer already because it wanted Carter to acknowledge for himself that he was ready to understand the secrets of the cosmos.
Nah was not fooled in the same scene tells him that you are going to sacrifice a hand, head or everything (and then Ed tells him the door) and the truth is left with a surprise face "with his mouth open" and then he he laughs in a crazy way seeing that they beat him and gives him all his brother for the sacrifice of the door
the truth is not omnicient at that point since ed could sacrifice something that he didn't think could be done
That's taking things out of context, Truth was pleasantly surprised that Edward was willing to sacrifice and give up his Gate, blocking him from performing Alchemy. Saying Truth was genuinely tricked is some serious reaching.
That is why he was surprised because he never thought that Ed would give his door and thought that other parts of his body would give him to recover his brother (apart in the text he tells him that they beat him so if he was deceived) for what would be almost omnicient oh with a knowledge of everything present and past (for the life of living beings that were at that point in history but nothing of the future since events have not yet been born and passed)
apart if the truth were omnicient not to have been captured by father (could have thought of a plan to neutronize it)