How much do you know? Check out what is true and what is false below (click the question mark to find out!) as Mr Dorsey, the best teacher in this universe, challenges you - what do you know?

The average teenage girl in England spends 500 pounds/year on underwear; the average teenage boy? 10 pounds.
Superman underoos are still the highest selling boy’s underwear item ever, selling approximately 10 million pairs per year.
Until the 1950s, most European women did not wear underwear as we know it; they wore ankle-length undershirts.
Bra-wearing helps reduce back-pain by taking the weight off of the back.
The most expensive underwear item is a Victoria’s Secret bra. Priced at $12.5 million, US.
Numerous medical studies have shown that women who wear bras are far more likely to have breast cancer; the more hours per day the bra is worn, the higher the cancer rate.
Attempts to market antibacterial socks and underwear proved to be a miserable failure.
Tight-laced corsets can permanently bend the ribs, and dangerously rearrange internal organs.
Bras were first burned in protest at the 1968 Miss America pageant in Atlantic City.
Bras were invented in the 1920s flapper era, to flatten the breasts.