Question: At the center of the square is the Royal Palace, founded in the 15th century and better known as the Palace of 55 Windows.
At the center of the square is the Palace of 97 windows, founded in the 20th century.

Answer: no

Question: Researchers announced that Spironolactone, a 40-year-old, inexpensive medication used to treat water retention, cut death from congestive heart failure by 30 percent in experimental trials.
Spironolactone is 80 years old.

Answer: no

Question: (If this national prerogative weren't preserved, Helms and company would be the first to object.)
Helms would object if the national prerogative was not preserved.

Answer:
yes