Logic Riddles

Question: A person was born in 1940. Today is his 18th birthday.

How is that possible?

Question: You have lost your mother at the carnival. You search for her and eventually you see her.

What's the first thing you do when you see her?

Question: You have two coconuts and you want to find out how high they can be dropped from a 100 story building before they break. But you only have $1.40 and the elevator costs a dime each time you ride it up (it's free for rides down).

How can you drop the coconuts to guarantee you will find the lowest floor they will break at, while starting and ending at floor 1?

Note: They break when dropped from the same height and they don't weaken from getting dropped.

Question: A pet shop owner had a parrot with a sign on its cage that said "Parrot repeats everything it hears." A young man bought the parrot and for two weeks he spoke to it but it didn't say a word. He tried to return the parrot but the shopkeeper said he never lied.

How can this be?

Question: You are running in a 400 meter race and you overtake the last person, what place are you now in?