1. you are trapped in a room with two doors. one leads to certain death and the other leads to freedom. you don't know which is which.

there are two robots guarding the doors. they will let you choose one door but upon doing so you must go through it.

you can, however, ask one robot one question. the problem is, while one robot always tells the truth, the other always lies and you don't know which is which.

what question will you ask?

2. mary's mum has four children.
the first child is called april.
the second may.
the third june.
what is the name of the fourth child?

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

-6 is the correct option from the above given options