Well I think they would be:
Adam&Eve: Just to look at them.
Muhammad: Her his voice and touch him.
Pharaoh: Ask him how were the waters of the NIL river
Samson: Admire his strenght
Juda Escariot(the apostle who is said to have betrayed Jesus): Just to look into his eyes.
Abraham Lincoln: Ask him what he thinks of the world's current situation.
Albert Einstein: Tell him to hide his next invention.
Louis Pasteur: Ask him to help the world out with the aids.
Hirohito: Tell him he did the right thing to surrender.
Winston Churchill: