In the knowledge contest, there are 10 judgment questions, and the scoring rules: 2 points are awarded for each correct answer, and 1 point will be deducted for each wrong answer or non-answer. Xiao Ming only scored 14 points. How many questions did he answer correctly?
在知识竞赛中，有10道判断题，评分规定：每答对一题得2分，答错或不答一题要倒扣1分．小明只得了14分，他答对了多少道题．
<gadget id="calculator">10 * 1</gadget>
<output>10</output>

<gadget id="calculator">14 + 10</gadget>
<output>24</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<result>8</result>