THREE RIDDLES

1. Why did it take scientists so long to identify the gene for shyness?
2. What's the difference between calling a 1-900 number and calling your lawyer?
3. Why are the letters A, C, E, and K called the "easy letters?"

Answers:

1. It was hiding behind two other genes. 
2. About $300 an hour
3. Each one is a piece of cake.