question:
It is widely believed that activity-dependent modification of synapses is the brain's primary mechanism for learning and memory.
How many synapses does the human brain supposedly contain?

answer: no

question:
Due to his abrupt death in an ambush in 972, Sviatoslav's conquests, for the most part, were not consolidated into a functioning empire, while his failure to establish a stable succession led to a fratricidal feud among his sons, which resulted in two of his three sons being killed.
In what year did Sviatoslav take over as leader?

answer: no

question:
He died in 1582 when one of his generals, Akechi Mitsuhide, turned upon him with his army.
Who caused Oda Nobunaga's death?

answer: yes

question:
It was mentioned by Charles Dickens, became a Lyons Corner House, and is now a Co-operative Bank.
In what district of London is The Angel located?

answer:
no