I had an experience once where I asked somebody a question, and the answer they gave was true.
However, the truth was so unbelievable, that I didn’t believe them. I only found out much later on they had in fact told the truth.
Reflecting on the encounter, I believe the person told me the truth knowing I wouldn’t believe them, and they wanted it that way, meaning they were deliberately deceiving me by telling me the truth.
Is there a word for this?