i need to make my quiz pick random questions instead of set ones

[cashton2k]

at the moment i have the following code for my quiz

this bit gets the question

<?php

$queryq3 = "SELECT QNO, Question, AnsA, AnsB, AnsC, AnsD, Answer FROM ip4quiz WHERE QNO ='3'"; 
   
   
$resultq3 = mysql_query($queryq3);

while ($row = mysql_fetch_array($resultq3)) {
   $questionno3 = $row['QNO'];
   $question3 = $row['Question'];
   $ansa3 = $row['AnsA'];
   $ansb3 = $row['AnsB'];
   $ansc3 = $row['AnsC'];
   $ansd3 = $row['AnsD'];
}

?>

then echos it out, the next bit marks it

<?php $queryq2 = "Select * from ip4quiz WHERE QNO ='2'";

$resultq2 = mysql_query($queryq2);

while ($row = mysql_fetch_array($resultq2)) {
   $qno2 = $row['QNO'];
   $question2 = $row['Question'];
   $ansa2 = $row['AnsA'];
   $ansb2 = $row['AnsB'];
   $ansc2 = $row['AnsC'];
   $ansd2 = $row['AnsD'];
   $ans2 = $row['Answer'];
}



    if ($question2result == $ans2) { 
        echo "<table border=0 width=100%>";
        echo "<tr><th><h3 align=left><img src=\"../images/quiz/quizcorrect.jpg\" />You answered Question: {$qno2} {$question2result} - This is Correct! </th></tr>\r\n"; 
        $score++; 
    } else { 
        echo "<table border=0 width=100% bgcolor=003366>";
        echo "<tr><th><h3 align=left><img src=\"../images/quiz/quizinincorrect.jpg\" />You answered Question: {$qno2} {$question2result} - This is Incorrect, The Correct answer is {$ans2}</th></tr>\r\n"; 
    
} 


?>

how can i make it pick from a list of questions at random instead of being told QNO = etc. my attempts have failed so far, any suggestions?