[GVnana]

But then again, what about "Some of the charges is true"? That sounds awful. I wish I could find my grammar book.

Warriner's English Grammar and Composition: Correct agreement rule 6f. "The pronouns some, all, any, most and none, may be either singular or plural....These words are plural if they refer to a number of persons or things; they are singular if they refer to an amount, or quantity of something.
SINGULAR:Some of the cargo was lost. (a quantity)
PLURAL:Some of the books were damaged.(a number of books.)

[Robert_Paulson2]

Absolutely correct... singular/plural is determined on these words, by the contextual meaning intended. Thanks for pointing that out with a reference.