Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What have one eye but still cannot see?

What goes through cities and fields, but never moves?

Solve the following series:
AZ, GT, MN, __, YB

Do You See It?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you find the missing piece of the Porsche?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)