Se trata de formularios HTML clásicos. Tienes un formulario como este:
<?php
$row = mysql_fetch_array(mysql_queryy('select * yourtable order by rand() limit 1'),MYSQL_ASSOC);
$question = $row['question'];
unset($row['question']);
shuffle($row);
?>
<form method="post" action="other_script.php?q=<?php echo $question; ?>">
<p><?php echo $question; ?></p>
<?php
foreach ($row as $key => $value) {
echo "<input type='radio' name='answer'>".$value."</input>
";
}
?>
<input type="submit">Submit</input>
</form>
Y luego tu other_script.php
la página se vería así:
<?php
$ans = mysql_result(mysql_query('select c_answer from yourtable where question = "'.url_decode($_GET['q']).'"'),0);
if ($_POST['answer'] == $ans){
echo "You got it right!";
}else{
echo "You got it wrong!";
}
?>