The term 'It Takes Two to Do It' can be summarized by two crossword solutions: TANGO (5 letters) and SEESAW (6 letters). TANGO is a type of dance that originated in Argentina and Uruguay. It is a partner dance that requires two people to perform. SEESAW is a playground activity that also requires two people to participate. It involves one person sitting on each end of a board or beam that is balanced in the middle. Both activities require two people to do them, hence the phrase 'It Takes Two to Do It'.