11. (5 points) As shown in the figure, a cubic wooden block is placed on a table, with several points drawn on each face. The sum of the number of points on opposite faces is 13. Jingjing sees that the sum of the points on the front, left, and top faces is 16, while Qingqing sees that the sum of the points on the top, right, and back faces is 24. What is the number of points on the face touching the table? $\qquad$ .
【Solution】Solution: Since Jingjing sees the sum of the points on the front, left, and top faces is 16, and Qingqing sees the sum of the points on the top, right, and back faces is 24,

Therefore, $(\text{front} + \text{back}) + (\text{left} + \text{right}) + \text{top} \times 2 = 16 + 24 = 40$,
Also, because the sum of the points on opposite faces is 13,
Then $13 + 13 + \text{top} \times 2 = 40$,
\[
\begin{array}{l}
26 + \text{top} \times 2 = 40, \\
\text{top} \times 2 = 40 - 26, \\
\text{top} = 14 \div 2, \\
\text{top} = 7,
\end{array}
\]

So the number of points on the face touching the table is $13 - 7 = 6$.
Therefore, the answer is: 6.