1. What number is always found in the middle of the telephone directory?
2. A farmer challenges an engineer, a physicist, and a mathematician to design a fence to fence off the largest amount of area using the least amount of fence.

The engineer made his fence in a circle and said it was the most efficient.
The physicist made a long line and said that the length was infinite. Then he said that fencing half of the Earth was the best. The mathematician laughed at the others and with his design, beat the others. What did he do?
3. In a certain neighborhood in certain city, there exist exactly 100 streets. Street 1 is named First Street, street 2 is named Second Street, and so on and so forth. A traveller decides to walk through all these streets in the neighborhood. He could find all the streets except Street 62. No matter how hard he tried, he could not find it. He later found that the locals had given the street another name. What is the name?
4. While riding in the car I saw a license plate that read like this: IXMNIZ. What occupation did the man in the car have?
5. What famous saying is represented here?    zain yain xain wain vain uain tain sain rain qain oain nain main lain kain jain iain hain fain eain dain cain bain aain
6. A man made up a seven-character password (letters and numbers only) for his e-mail  account, and he wanted to write it down somewhere in case he forgot it. But he didn't want to write down the actual password, so he wrote this sentence: "You force Heaven to be empty."  Can you crack his password?

Time? Idiosyncrasy.