The crossword solution for the term 'Simon and Garfunkel Number, Say' is DUET. Simon and Garfunkel were an American folk rock duo consisting of singer-songwriters Paul Simon and Art Garfunkel. They are best known for their chart-topping hits such as 'The Sound of Silence', 'Mrs. Robinson', and 'Bridge Over Troubled Water'. The duo's music was often characterized by their close vocal harmonies and lyrics that reflected the youth culture of the 1960s. As a result, they became one of the most successful musical acts of the era, winning multiple Grammy Awards and selling over 100 million records worldwide.