Fun Riddles

Question: Four people need to cross a bridge in 17 minutes in the middle of the night. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. Tom can cross in 1 minute, John can cross in 2 minutes, Sally can cross in 5 minutes, and Connor can cross in 10 minutes. If two people cross together they go as fast as the slower person.How can they cross the bridge in 17 minutes or less?

Question: What fastens two people yet touches only one?

Question: What grows up and down at the same time?

Question: What starts with the letter "t", is filled with "t" and ends in "t"?

Question: 7 months have 31 days. How many months have 28 days?