Best easy riddles

Marty and Jill want to copy three 60 minute tapes. They have two tape recorders that will dub the tapes for them, so they can do two at a time. It takes 30 minutes for each side to complete; therefore in one hour two tapes will be done, and in another hour the third will be done. Jill says all three tapes can be made in 90 minutes. How?

What can travel around the world while staying in a corner?

If 20 blackbirds are on a fence and you shoot one, how many remain?

When will a net hold water?

I create my lair with earthen string and dispatch my prey with a biting sting. What am I?

You leave home, make three left turns, and return home where you find two men wearing masks. Who are they?

What can you lose that will cause other people to lose theirs too?

Name the only sport in which the ball is always in possession of the team on defense, and the offensive team can score without touching the ball?

You are a bus driver. The bus starts out empty. At the first stop 4 people get on. At the second stop, 8 people get on and 3 get off. At the third stop, 2 people get off and 4 get on. The question is, what color are the bus driver's eyes?

It is an insect, and the first part of its name is the name of another insect. What is it?