Learn English – Words to describe the sounds created when having sex

Your first example, where the sentence is technically true but conveys a false meaning, would be considered sophistry in English. Informally, we might call these weasel words or, in some situations, use the recently coined word truthiness.

If you tell the truth about something, but hold something back, as in your second example, you could call that a half-truth. If you say, "I can't be drunk, I only had one beer," but you also drank a bottle of vodka, that would be a half-truth. This seems closer to your second example.

However, in my experience, most English speakers would be more likely to describe these situations in more general terms, as a trick, than to use a term specific to this sort of language.

"Explosion" and "Blast" 100% work in this situation.

The explosion sound made from the bomb was extremely loud.

The blast from the bomb was extremely loud.

If these words become too repetitive I suggest using onomatopoeias.

Onomatopoeias are words that express a sound and could be used as an interjection at the beginning of the sentence.

Boom! The bomb went off after the minute was up.

The "boom" at the beginning of the sentence could be replaced by a variety of different onomatopoeias. Such as "boosh", "bam".

For further list of these words see: List of Onomatopoeias