Mistake (contract law) void. Traditionally, Caveat Emptor (let the buyer beware), and under Common Law Caveat Venditor (let the seller beware). A contract might be voidable from unilateral mistake for any of the following: A mutual mistake occurs when the parties to a contract are both mistaken about the same "material" fact within their contract. They are at cross-purposes. There is a meeting of the minds, but the parties are mistaken. Hence the contract is voidable. "Collateral" mistakes will not afford the right of rescission. A collateral mistake is one that 'does not go to the heart' of the contract. For a mutual
What Do You Mean? also debuted at number one the "Billboard" Hot Digital Songs chart, selling 337,000 copies in the week ending September 3, 2015—marking Bieber's second number one single on the chart, following "Boyfriend" which sold 521,000 in its debut week. In its second week, "What Do You Mean?" stayed at the top of the Hot Digital Songs chart with sales of 159,000 copies, however, it descended to number three on the Hot 100, with a decrease of 30% in overall activity, but rebounded to the runner-up spot the following week and stayed as the best-selling song with 128,000 downloads. On the chart