114. Give an example of duress.

115. Do duress and fraud render a contract void or voidable?

116. Define mistake in connection with making a contract. Define mistake of fact.

117. Define mistake of law.

118. Does mistake of one party to a contract avoid the contract?

119. Does mistake of law avoid a contract?

120. Does mutual mistake render a contract void or voidable?

121. What is meant by a contract impossible of performance? Give an example of a contract impossible of performance.

122. A, on April 4, enters into a contract dated April 2, by which he promises to deliver to B within twenty-four hours, five tons of coal. Is A liable on this contract?

123. Do floods, earthquakes, or lightning preventing performance excuse performance?