impossible question

Impossible Question February 20th, 2013

Q ..... In a recent study of brain waves .... what is the most unpleasant sound?

A ..... 1. Knife on a bottle

2. Fork on a glass

3. Chalk on a blackboard

4. Ruler on a bottle

5. Nails on a blackboard

6. Female scream

7. Angle grinder

8. Brakes on a cycle squealing

9. Baby crying

10. Electric drill