A uniquely Creole tradition is the touloulous. These women wear decorative gowns, gloves, masks and headdresses that cover them completely, making them unrecognisable, even to the colour of their skin. On Friday and Saturday nights of Carnival, touloulou balls are held in so-called universities; in reality, large dance halls that open only at Carnival time. Touloulous get in free, and are even given condoms in the interest of the sexual health of the community. Men attend the balls, but they pay admittance and are not disguised. The touloulous pick their dance partners, who may not refuse. The setup is designed to make it easy for a woman to create a temporary liaison with a man in total anonymity. Undisguised women are not welcomed. By tradition, if such a woman gets up to dance, the orchestra stops playing. Alcohol is served at bars – the disguised women whisper to the men "touloulou thirsty", at which a round of drinks is expected, to be drunk through a straw protect their anonymity.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Why do the women drink through a straw? 
Ah, so.. protect their anonymity

The College's endowment is sub-divided into three distinct portfolios: (i) Unitised Scheme – a unit trust vehicle for College, Faculties and Departments to invest endowments and unfettered income to produce returns for the long term; (ii) Non-Core Property – a portfolio containing around 120 operational and developmental properties which College has determined are not core to the academic mission; and (iii) Strategic Asset Investments – containing College’s shareholding in Imperial Innovations and other restricted equity holdings. During the year 2014/15, the market value of the endowment increased by £78 million (18%) to £512.4 million on 31 July 2015.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many percent did the college's endowment market value increase from 2014 to 2015?
Ah, so.. 18%

A climbing elevator is a self-ascending elevator with its own propulsion. The propulsion can be done by an electric or a combustion engine. Climbing elevators are used in guyed masts or towers, in order to make easy access to parts of these constructions, such as flight safety lamps for maintenance. An example would be the Moonlight towers in Austin, Texas, where the elevator holds only one person and equipment for maintenance. The Glasgow Tower — an observation tower in Glasgow, Scotland — also makes use of two climbing elevators.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What defines a climbing elevator?
Ah, so..
a self-ascending elevator with its own propulsion