The Detective's Cipher
A short mystery text is missing a clue. Choose the correct suspect!
"The victim was found with a torn piece of red fabric. Among the suspects, only one was wearing red earlier today..."
Speed Math Challenge
Solve the arithmetic problem as fast as you can!
12 * 4 + 7 = ?
The Pattern Master
Find the missing number in the sequence.
2, 4, 8, 16, ?