Log in the woods

Question: You walk down a path through the woods everyday. You always walk by one particular large rotting log which weighs over a ton. The next day you notice that there is another large log underneath the familiar one that you've never seen before. How did it get there?

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.