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#### Joke problem , Polynomials(other)

Find the coefficient of x for the polynomial $($x – a$)$ $($x – b$)$ $($x – c$)$ … $($x – z$)$.

#### Joke problem , Motion problems

Andrew drives his car at a speed of 60 km/h. He wants to travel every kilometre 1 minute faster. By how much should he increase his speed?

#### Combined labour (work) problems , Joke problem

One and a half diggers dig for a half hour and end up having dug half a pit. How many pits will two diggers dig in two hours?

#### Joke problem

With the help of scissors, cut a hole in a notebook through which an elephant could climb!

#### Joke problem

Is it possible to arrange 6 long round pencils so that each of them touches all the other ones?

#### Equations in integer numbers , Joke problem

Is it possible to find natural numbers $x$, $y$ and $z$ which satisfy the equation $28x+30y+31z=365$?

#### Joke problem

Homework. Cut a hole in an exercise book of a size so that you yourself can climb through it.

#### Arithmetics. Mental maths , Joke problem

Gerard says: the day before yesterday I was 10 years old, and next year I will turn 13. Can this be?

#### Joke problem

In two purses lie two coins, and one purse has twice as many coins as the other. How can this be?

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