$("#add").on( 'click', function() {
        var question_add = $('<div id="question-'+questions+'" class="question">');
        $(question_add).append('<textarea class="column" name="questions[]" rows="4" id="questions-'+questions+'" placeholder="kysymys" required />');
        $(question_add).append('<textarea class="column" name="choices[]" rows="4" id="choices-'+questions+'" placeholder="vaihtoehdot" required />');
        $(question_add).append('<textarea class="column" name="solutions[]" rows="4" id="solutions-'+questions+'" placeholder="vastaukset" required />');