Each symbol in the grid below represents a numerical value. We know the sum of symbols for the first, second, and bottom rows and the leftmost and rightmost columns.
A 4 by 4 grid with a triangle, a circle, a square or a hexagon in each square.
The first row has 4 triangles with the number 16 to the right of the row.
The second row in order has triangle, circle, square, hexagon with the number 19 to the right of the row.
The third row has circle, circle, square, hexagon with a question mark to the right of the row.
The fourth row has circle, triangle, circle, square with the number 20 to the right of the row.
The number 22 appears at the bottom of the first column.
The number 18 is at the bottom of the fourth column.
The middle two columns have question marks at the bottom.
