Question: American Idol became the most expensive series on broadcast networks for advertisers starting season four, and by the next season, it had broken the record in advertising rate for a regularly scheduled prime-time network series, selling over $700,000 for a 30-seconds slot, and reaching up to $1.3 million for the finale. Its ad prices reached a peak in season seven at $737,000. Estimated revenue more than doubled from $404 million in season three to $870 million in season six. While that declined from season eight onwards, it still earned significantly more than its nearest competitor, with advertising revenue topping $800 million annually the next few seasons. However, the sharp drop in ratings in season eleven also resulted in a sharp drop in advertising rate for season twelve, and the show lost its leading position as the costliest show for advertisers. By 2014, ad revenue from had fallen to $427 million where a 30-second spot went for less than $300,000.
Is there an answer to this question: How much did advertisers spend for a 30 second ad spot during American Idol in 2014?

Answer: less than $300,000

Question: The Gregorian reform contained two parts: a reform of the Julian calendar as used prior to Pope Gregory XIII's time and a reform of the lunar cycle used by the Church, with the Julian calendar, to calculate the date of Easter. The reform was a modification of a proposal made by Aloysius Lilius. His proposal included reducing the number of leap years in four centuries from 100 to 97, by making 3 out of 4 centurial years common instead of leap years. Lilius also produced an original and practical scheme for adjusting the epacts of the moon when calculating the annual date of Easter, solving a long-standing obstacle to calendar reform.
Is there an answer to this question: What calendar was changed by the Julia reform?

Answer: unanswerable

Question: Temperatures in Israel vary widely, especially during the winter. Coastal areas, such as those of Tel Aviv and Haifa, have a typical Mediterranean climate with cool, rainy winters and long, hot summers. The area of Beersheba and the Northern Negev has a semi-arid climate with hot summers, cool winters and fewer rainy days than the Mediterranean climate. The Southern Negev and the Arava areas have desert climate with very hot and dry summers, and mild winters with few days of rain. The highest temperature in the continent of Asia (54.0 C or 129.2 F) was recorded in 1942 at Tirat Zvi kibbutz in the northern Jordan river valley.
Is there an answer to this question: What kind of climate does Arava have?

Answer: desert

Question: The primary source of rain in the Sahara is the equatorial low a continuous belt of low-pressure systems near the equator which bring the brief, short and irregular rainy season to the Sahel and the southern Sahara. The Sahara doesn't lack precipitation because of a lack of moisture, but due to the lack of a precipitation-generating mechanism. Rainfall in this giant desert has to overcome the physical and atmospheric barriers that normally prevent the production of precipitation. The harsh climate of the Sahara is characterized by extremely low, unreliable, highly erratic rainfall; extremely high sunshine duration values; high temperatures year-round; negligible rates of relative humidity, a significant diurnal temperature variation and extremely high levels of potential evaporation which are the highest recorded worldwide.
Is there an answer to this question: When are high temperatures erratic?

Answer:
unanswerable