1. Which letter or number is the odd one out?
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N
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2. Which letter or number is the odd one out?
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O
L
U
T
I
O
N
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3. Which letter or number is the odd one out?
S
O
L
U
T
I
O
N
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4. Which letter or number is the odd one out?
S
O
L
U
T
I
O
N
: