Puzzle 2

Here's another one. Try this one for size. Top 2.5% can do this within 10 minutes.

On a trina, Smith, Robinson & Jones are the fireman, brakeman & the engineer but NOT respectively. Also on the train are 3 businessmen who have the same names, Mr. Robinson, Mr. Smith & Mr. Jones.

• Mr. Robinson lives in Detroit
• The brakeman lives exactly halfway between Chicago & Detroit.
• `Mr. Jones earns exactly $20,000 per year.
• The brakeman's nearest neighbour, one of the passengers, earns exactly 3 times as much as the brakeman.
• Smith beats the fireman in billiards.
• The passenger who has the same name as the brakeman does lives in Chicago.

Who is the engineer?

Have fun solving it.