$question[15] = "Picanha, um corte da carne bovina, é um prato tipicamente...";
$answer[15][0] = array("Brasileiro", true);
$answer[15][1] = array("Português", false);
$answer[15][2] = array("Mexicano", false);

for($p=0;$p<15;$p++){
	echo $question[$p]."<br/>";
	for($r=0;$r<3;$r++) {
		echo $answer[$p][$r][$r]."<br/>";
		//the above code will only reference [15][0][0], [15][1][1] and [15][2][2]
		//you should have something like this:
		echo $answer[$p][$r][0] ." : " . $answer[$p][$r][1] ."<br />";
	}
	echo "<br/>";
}