Is it ever smart to reply to texts from numbers you don’t know?

in the last couple weeks i’ve been contacted vie whatsapp by two numbers, the first just said “hi” and today the second said “Hello, If you're not busy, could I ask you something quickly?” i’m from Europe and google is saying those indicatives are from numbers from new orleans. it says “business account” the first had a todd cruz name and the second a random mix of letters. should i reply? i’ve blocked both
Is it ever smart to reply to texts from numbers you don’t know?
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