Utahraptors
With a pack that large, the Utahraptors have the upper hand. The utahraptors would have probably used a hunting strategy and distracted the T-Rex while the others attacked from the side. The Utahraptors may take a few casualties and probably would think twice about taking a T-Rex head on.
MadonaMadona
As far as we know, the Utahraptor did not have wings, and was as such incapable of flight.
All life reproduces by definition, so yes.
Technically yes. Utahraptors are classified as dinosaurs and therefore reptiles. However they had more in common with birds than with modern reptiles.
A pack of utahraptors, there where probaly 20 or 30 of them, each 19 feet in length, cold-blooded killers. If you made them angry they can rip apart in about 2 to 10 seconds.
Real Raptors of similar size and build to the ones in Jurassic Park or Utahraptors (Basically 6 feet in height and 12 feet in length.) could reach top speeds of 25 MPH while the much smaller Velociraptor could reach 30-40 mph at top speed.
about 80 miles per hour check at: http://www.enchantedlearning.com/dinotalk/dinoscienceforum/old/Sept01.shtml search utahraptor and it should be the third or fourth question down.
While Utahraptor was a large and formidable predator, it would be unlikely for it to kill a fully grown Tyrannosaurus rex in a direct confrontation. T. rex was significantly larger and more powerful, with strong jaws and robust body structure. However, if a pack of Utahraptors were to coordinate their attacks, they might stand a better chance against a younger or weakened T. rex, but such scenarios would still be highly improbable in a one-on-one encounter.
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He did not live in a box, He did not live with a fox, He did not live on a train, He did not live in Ukraine, He did not live here nor there, He did not live anywhere!