private function get_new_questions() {

		$quiz = llms_get_post( $this->get( 'quiz_id' ) );

		$questions = array();

		if ( $quiz ) {

			$randomize = llms_parse_bool( $quiz->get( 'random_questions' ) );

			// Array of indexes that will be locked during shuffling.
			$locks = array();

			foreach ( $quiz->get_questions() as $index => $question ) {

				// If randomization is enabled, store the questions index so we can lock it during randomization.
				if ( $randomize && $question->supports( 'random_lock' ) ) {
					$locks[] = $index;
				}

				$questions[] = array(
					'id'      => $question->get( 'id' ),
					'earned'  => 0,
					'points'  => $question->supports( 'points' ) ? $question->get( 'points' ) : 0,
					'answer'  => null,
					'correct' => null,
				);

			}

			if ( $randomize ) {

				// Lifted from https://stackoverflow.com/a/28491007/400568.
				// I generally comprehend this code but also in a truer way i have no idea...
				$inc = array();
				$i   = 0;
				$j   = 0;
				$l   = count( $questions );
				$le  = count( $locks );
				while ( $i < $l ) {
					if ( $j >= $le || $i < $locks[ $j ] ) {
						$inc[] = $i;
					} else {
						$j++;
					}
					$i++;
				}

				// Fisher-yates-knuth shuffle variation O(n).
				$num = count( $inc );
				while ( $num-- ) {
					$perm                       = rand( 0, $num );
					$swap                       = $questions[ $inc[ $num ] ];
					$questions[ $inc[ $num ] ]  = $questions[ $inc[ $perm ] ];
					$questions[ $inc[ $perm ] ] = $swap;
				}
			}
		}

		return $questions;

	}