It's funny because it is a not-expected sentence, but you can say it without problem.
If somebody say: "Good morning!", is "expected" to hear as a reply "Good morning!"
If you say "It's a very good morning indeed!" It will be true, and gramatically ok, but more funny. You make the other person think (two-seconds-delay).
You can freely say "Me gusta leer detallad
amente", but the other person will need two second more as usual to understand the sentence and reply.
Saludos
PD: If you're so, I recommend funny novels of Terry pratchett ("Discworld"). Most of the sentences have a pun.
