What number comes inside the circle?
Answer is 6 middle circles= (addition of first circles + last circles) / 2
Answer : 6
Looking at the diagram in rows, the central circle equals half the sum of the numbers in the other circles to the left and right of the centre.
Select 3 Balls and place them inside the circle, the sum must be 30.
There is a tunnel. Inside is only one train track. A train comes in from the left at 2:00 and another train comes in from the right on the same track at 2:00 also. Both come out safely.
How was this possible?
