One afternoon, the Benson brothers ate their lunch in a locked room. There was a small window in to corner of the room but it was too high for the brothers to reach even if they stacked on top of one another.

“I hate this! Jester’s training is the worst!” John said as he wrapped up his empty box. Luke and Mark nodded their heads in consent. Jester locked them up and spread out 5 keys in the room. Each key was a different color and the colors were: Red, Orange, Yellow, Green, and Blue. On the door was a note that read...

Dear Mark, Luke, and John,

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Gather and line up the keys according to these rules. Then, you will find the correct key. You may only insert a key into the door once. If that key is correct, the door will unlock. If the key is incorrect, I won’t give you any of my cake tonight. Here are the rules:

Red: This key is somewhere to the left of the key to the door.

Blue: This key is not at one of the ends.

Green: This key is three spaces away from the key to the door (2 between).

Yellow: This key is next to the key to the door.

Orange: This key is in the middle.

Remember, you only have one chance. Knight is nearby to let you out if you fail.

Sincerely,

Jester

What is the order of the keys? Which color is the correct key?