What goes through cities and fields, but never moves?

In the image given, you can find several triangles. Can you count them all?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?