For puzzles on spotting an odd-one-out item in a list.
In an Odd-one-out puzzle, the objective is to find a pattern in a list and to notice that one of the elements deviates from this pattern.
For example:
Sheep, Shark, Dog, Rock, Chicken, Dog, Elephant, Parrot, Mouse, Worm, Frog, Snake, Trout.
In this case the answer would be
Rock
All other items in the list are animals.