X wrote, "Never met mark before"
Sorry, I thought X was your Mark.
HASET

Typo maybe?
As someone already pointed out, the code's 'ANGLE.' Now gimme a beer! = On me.
The answer to the second one is "QUESTION MARK" - ROT 6.
Neat problem, I will get right on it.
The right answers automatically trigger the bonus round.
Question 1.
With which hand do Arabs stir their coffee
Question 2.
Train A leaves New York travelling at 50 mph. Train B leaves Boston travelling at 45 mph. 90 minutes later, they meet. Which train is further from New York
Question 3.
Two of every seven people in town have an unlisted telephone number. If there are 14,000 names in the phone book, how many of them have unlisted numbers
Question 4.
How many successful parachute jumps does a US Army recruit have to make before graduating from jump school
Question 5.
A plane from Houston is halfway to Miami cruising at 5,000 feet when it has engine trouble. The pilot jettisons a 100kg sack of mail and a 100kg steel rod. Which hits the ground first