Questions (ζητηματα). Plural, contemptuous, "a parcel of questions" (Knowling).

About words (περ λογου). W…

Of words. A dispute about words; for such he would regard all their controversies about religion to be.

And names…

But if it be a question of words and names, and of your law.—The second noun is in the singular number in the Greek. St. …

Persuadeth men to worship God contrary to the law. And when Paul was now about to open his mouth, Gallio said unto the Jews, If it were a matte…

The word “law” (GK 3795) in v.13 is somewhat ambiguous. Undoubtedly when it was first used by Paul’s antagonists in their synagogue, it referred to…

Of words and names. These words are not well arranged. Yet Gallio speaks this way of the law of God contemptuously, as if the Jewish relig…

But if it be a question of words
"Or of the word", what the Jews called the word of God, which Gallio did not preten…

Paul was about to show that he did not teach people to worship God contrary to the law; but the judge would not allow the Jews to complain to him a…