, 2014

From the second row, $\triangle + \triangle + \triangle + \triangle = 24$ or $4\triangle = 24$, and so $\triangle = 6$. From the first row, $\heartsuit + \triangle + \triangle + \heartsuit = 26$ or $2 \heartsuit + 2 \triangle = 26$. Since $\triangle = 6$, then $2 \heartsuit = 26 - 12 = 14$, and so $\heartsuit = 7$. From the fourth row, $\square + \heartsuit + \square + \triangle = 33$. Since $\triangle = 6$ and $\heartsuit = 7$, then $2\square + 7 + 6 = 33$, and so $2\square = 20$ or $\square = 10$. Finally, from the third row, $\square +$ $\blacklozenge$ $+ \heartsuit +$ $\blacklozenge$ $= 27$. Since $\square = 10$ and $\heartsuit = 7$, then $2$ $\blacklozenge$ $= 27 - 10 - 7 = 10$. Thus, $\blacklozenge$ $= 5$.