Reflective Shield

Question: A shield can reflect projectiles which travel at 4/5 of their original speed after being reflected. A missile is shot towards the shield at 700 km/h. At what speed did it go after its reflection?

Question: During what month do people sleep the least?

Question: When is 99 more than 100?

Question: You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not?

The glass is a right cylinder.

Question: What goes through towns and over hills, but never moves?

Question: A detective who was mere days away from cracking an international oil smuggling ring has suddenly gone missing.While inspecting his last-known location,officers find a note:710 57735 34 5508 51 7718.Currently there are 3 suspects:Bill John,and Todd. Can you break this answer and tell me the reason.