No the dead are alive in another sense. Rev 6:9, And the fact Moses and Elijah appeared and spoke to Jesus though they were "dead".
What about Samuel (1 Sam 28)
He seems to have been resting in Hades...in fact, his annoyance sounds rather like one who has been awakened from sleep:
1Sa 28:15 And Samuel said to Saul, Why hast thou disquieted me, to bring me up?
Of course, there have been exceptions. Elijah, for instance, was taken up in a whirlwind...he evidently did not die a physical death. So why could he not appear and speak to Jesus? Surely God is able to raise whom He will raise, whether they sleep or no?
On the other hand, what about all of those saints who came out of their graves at the death of Christ?
Mat 27:50 Jesus, when he had cried again with a loud voice, yielded up the ghost.
Mat 27:51 And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent;
Mat 27:52 And the graves were opened; and many bodies of the saints which slept arose,
Mat 27:53 And came out of the graves after his resurrection, and went into the holy city, and appeared unto many
I am curious...where do you think these guys are today?
"Lord, I have no gift to bring
Only this little song I sing."
"My child," gently smiled the Lord,
"Go, and sing it to the world."