get_meta_data within a loop

query_posts() is for main query, it would be more wise to use get_posts() function to get you events.

// Modify get_posts args for your needs
$events = get_posts( array ( 'post_type' => 'events' ) );

if ( $events ) {
    echo '<ul>';

    foreach ( $events as $event ) {
        $event_date = get_post_meta( $event->ID, 'event-date', true );

        echo '<li>' . get_the_title( $event->ID ) . ' - ' . $event_date . '</li>';
    }

    echo '</ul>';
}