Who was the first diver to win three successive Olympic highboard titles?
John Shenton, Newham

THE JUDGE: Klaus Dibiasi, born in Austria in 1947 of Italian parents, completed the first hat-trick off the highboard when he collected his third gold medal in the 1956 Montreal Olympics. He won his first gold in Tokyo at the age of 17.

What was the Olympic medal-winning record of British rower Jack Beresford?
Geoff Broadhurst, Holland Park

THE JUDGE: Beresford was always recognized as the greatest of all British rowers until the emergence of Steve Redgrave. He competed in five consecutive Olympics, and was preparing for a sixth appearance in the 1940 Games when war intervened. He won a total of three gold medals and two silvers.

What did Dhyan Chand achieve on the hockey field that made him an Olympic legend?
Martyn Beale, Eastleigh, Hants

THE JUDGEL Dhyan Chand was to hockey what Pele was to football and Bradman to cricket. He was centre-forward in the Indian teams that won the Olympic golds in 1928 and 1932 and captained the 1936 champions who clinched the title with victory over host country Germany in Berlin. In their three Olympic triumphs, Chand-inspired India scored 102 goals and conceded just three.

What was the Olympic weight-lifting record of 'The Great Zhabo'?
Brett Hughes, Maidstone

THE JUDGE: Leonid Zhabotinsky, standing 6 ft 6 in and weighing more than 25 stone, dethroned his previously unbeaten Russian countryman Yuri Vlasov in the 1964 Olympics in Tokyo when he produced a world record jerk at his last attempt to clinch the gold medal. A colourful character who captured world-wide interest with his expressive approach to his sport, he retained his Olympic crown at the age of 31 in 1968 with a total lift of 1,262 lb - identical to his record in Tokyo. He set 17 world records during his career, and created the standards later surpassed by Vasili Alexeev, who was Olympic super-heavyweight champion in 1972 and 1976 and was known to eat as many as 30 fried eggs for breakfast. He set a remarkable 80 world records.

How old was Kornelia Ender when she won her first Olympic swimming medal? Sally Hart, Clacton

THE JUDGE: Ender was 13 when she won a silver medal in the 1972 Munich Olympics. Four years later the strapping East German won four individual golds and a silver, a feat that was later tarnished by allegations of wide-spead doping among the East German athletes and swimmers.

Who was the gymnast who performed the 'Mexican Hat Dance' in the 1968 Mexico Games?
Helen Thomas, Bideford, Devon

THE JUDGE: It was Vera Caslavska, the Czech queen of gymnastics, who just two months before the Games had been hiding in her home town of Prague fol lowing the invasion of Czechoslovakia by Russian troops. Spurred on by the knowledge that victory over the Russian gymnasts would boost morale at home, Vera produced a series of stunning routines to win gold medals for the combined exercises, horse vault and asymmetric bars. She was also joint first in the floor exercises and gained silvers in the beam and team event. She completely won over the Olympic hosts when she selected the 'Mexican Hat Dance' as the background music for her floor exercise. She had a total haul of seven gold and four silver medals, including her successes in the 1964 Games. Vera brought romance to the Games just a few days after her triumphs in the gymnasium in Mexico when she married Czech 1500 metres runner Josef Odlozil, eighth in the Olympic final, at a Roman Catholic church in the centre of Mexico City.

Was Chris Brasher ever disqualified while competing in the Olympics?
Fred Crawley, Birmingham

THE JUDGE: Brasher won the 3,000 metres steeplechase in the 1956 Melbourne Olympics, but only after judges had over-ruled a disqualification for allegedly obstructing an opponent just before making his sprint for home and victory by a margin of 15 metres. He was carrying an injury and finished eleventh out of 12 in the 1952 steeplechase final. Brasher, the man who inspired the London Marathon and helped pace Roger Bannister to the first sub-four minute mile, went to Melbourne only as a late-choice third string in the steeplechase. He was a mountaineer and Cambridge graduate who went on to a distinguished career in sports journalism.

Who has been the oldest medallist in any Olympic competition?
Gary Mann, Hatfield

Sweden's Oscar Swalin was 72 years 279 days old when taking a silver medal in the shooting competition at the 1920 Olympics. He had been the oldest Olympic champion in 1912 when winning a shooting gold medal.