Which number replaces the question mark?
...Which number replaces the question mark?
12
15
18
21
Correct answer is A
The value at each corner of the diagram equals the difference between the sums of the numerical values of the letters in the boxes adjacent to the corner.
Which letter replaces the question mark? ...
Which picture cube does this shape make? ...
What is missing in the last grid? ...
Which grid replaces the question mark? ...
What time should the last watch show? ...
Which segment replaces the question mark? ...
Which letter replaces the question mark? ...
Which letter replaces the question mark? ...
Which symbol is needed to balance the bottom scale? ...
Where should the hour hand be pointing on the bottom clock? ...