Where in this passage does the writer identify the serpent as Satan? That will have the JW scouring the text frenetically, and ultimately unable to prove that it was actually Satan. They just assume that it is because the WTS tells them that it is.
"So down the great dragon was hurled, the original serpent, the one called Devil and Satan." (Rev. 12:9) Does the new testament count ?
Anyone can reason that God, "Satan", both or neither lied. One can say that God didn't lie, because Adam & Eve "died" in God's eyes, "died spiritually", started dying physically, or were as good as dead starting in that 24hr "day". And the other arguments for God lying and Satan telling the truth have already been mentioned.
If you believe as Jesus did, then you'll believe that Satan lied and God didn't. (John 8:44) I'm sure Satan is labeled a liar not because of what he said, but because his "intent" was not to the good of humans. Technically he didn't lie, but he decieved Eve which resulted in a bad outcome for humans.
-mE