The legend of Virgil in his Basket arose in the Middle Ages, and is often seen in art and mentioned in literature as part of the Power of Women literary topos, demonstrating the disruptive force of female attractiveness on men. In this story Virgil became enamoured of a beautiful woman, sometimes described as the emperor's daughter or mistress and called Lucretia. She played him along and agreed to an assignation at her house, which he was to sneak into at night by climbing into a large basket let down from a window. When he did so he was only hoisted halfway up the wall and then left him trapped there into the next day, exposed to public ridicule. The story paralleled that of Phyllis riding Aristotle. Among other artists depicting the scene, Lucas van Leyden made a woodcut and later an engraving.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did Lucas van Leyden live?
Ah, so.. unanswerable

Sleep involves great changes in brain activity. Until the 1950s it was generally believed that the brain essentially shuts off during sleep, but this is now known to be far from true; activity continues, but patterns become very different. There are two types of sleep: REM sleep (with dreaming) and NREM (non-REM, usually without dreaming) sleep, which repeat in slightly varying patterns throughout a sleep episode. Three broad types of distinct brain activity patterns can be measured: REM, light NREM and deep NREM. During deep NREM sleep, also called slow wave sleep, activity in the cortex takes the form of large synchronized waves, whereas in the waking state it is noisy and desynchronized. Levels of the neurotransmitters norepinephrine and serotonin drop during slow wave sleep, and fall almost to zero during REM sleep; levels of acetylcholine show the reverse pattern.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The three types of brain activity that can be measured are what?
Ah, so.. REM, light NREM and deep NREM

The administration of London is formed of two tiersa city-wide, strategic tier and a local tier. City-wide administration is coordinated by the Greater London Authority (GLA), while local administration is carried out by 33 smaller authorities. The GLA consists of two elected components; the Mayor of London, who has executive powers, and the London Assembly, which scrutinises the mayor's decisions and can accept or reject the mayor's budget proposals each year. The headquarters of the GLA is City Hall, Southwark; the mayor is Boris Johnson. The mayor's statutory planning strategy is published as the London Plan, which was most recently revised in 2011. The local authorities are the councils of the 32 London boroughs and the City of London Corporation. They are responsible for most local services, such as local planning, schools, social services, local roads and refuse collection. Certain functions, such as waste management, are provided through joint arrangements. In 20092010 the combined revenue expenditure by London councils and the GLA amounted to just over 22 billion (14.7 billion for the boroughs and 7.4 billion for the GLA).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What group of elected officials provides checks and balances on the Mayor's executive authority?
Ah, so..
the London Assembly