Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: An office of profit is a term used in a number of national constitutions to refer to executive appointments. A number of countries forbid members of the legislature from accepting an office of profit under the executive as a means to secure the independence of the legislature and preserve the separation of powers.
 Question: is office of profit mentioned in the constitution Context: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail.
 Question: can you send a postcard without a return address Context: If f is differentiable at a point x, then f must also be continuous at x. In particular, any differentiable function must be continuous at every point in its domain. The converse does not hold: a continuous function need not be differentiable. For example, a function with a bend, cusp, or vertical tangent may be continuous, but fails to be differentiable at the location of the anomaly.
 Question: if a function is continuous then it is differentiable at that point
Yes
Yes
Yes
Yes