Good Riddles

Question: What kind of bed does a mermaid sleep in?

Question: What is red and goes up and down?

Question: On a late Sunday evening, April was found dead in her apartment. The police questioned the three suspects. Melanie: "I was at the mall shopping." Delancey: "I was working at the post office." John: "When I came back by 2 PM, I found her dead. Who killed April and explain the reason.

Question: What goes on and on and has an 'i' in the middle?

Question: Insects have been disappearing for the past month. You are in a lab studying why and how this is happening, but the main door closes and you are locked inside. There are three doors in front of you that lead to freedom. Door 1: Hungry eating plants Door 2: Blood-thirsty vampires Door 3: Coldwater which you would get hypothermia quickly. Which door would you choose?