By using 'because' continuously three times, can you make an English statement ?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Can you place three balls such that the equation shown in the picture holds true?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

I taste better than I can smell. Who am I?

Prove that twice of ten is the same as twice of eleven.

Which part of London exists in France as well ?

There are 4 big houses. They are made from the materials: red marble, green marble, white marble and blue marble.

* Mrs Jennifer's house is somewhere to the left of the green marble one and the third one alone is white marble.
* Mrs Sharon owns a red marbles house and Mr Cruz does not live at either end, but lives somewhere to the right of the blue marbles house.
* Mr Danny lives in the fourth house, while the first house is not made from red marble.

Who lives where, and what is their house made from?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.