Can it be possible to build a house that has all its four walls facing towards the South?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Count the number of squares in the picture below.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Can you solve below mathematical equation?

2^1234 - 2^1233

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

What goes up but never comes down?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

What is the Surname of Barbie Doll?