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You give another's me to yet one more,

For which both other thanks you for

In honesty the rule is mine,

If I'm of both worlds, both are fine,

If I'm to dress up special, prey

That I will be in one Sunday.

'You give yours to someone else?'
'No, I give another's to someone else. And they both thank me for it.'

Riddle Answer The Best

Riddle Explanation

you give another's me to yet one more, for which both other thanks you for - to give someone’s best to someone else, as in the expression give my best to them.

in honesty the rule is mine - honesty is the best policy.

if I'm of both worlds, both are fine - the best of both worlds.

if I'm to dress up special, prey that I will be in one Sunday - to be in one's Sunday best.