Can you solve the below tricky visual equation?

Count the number of lines in the image below ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Complete the table series riddle by finding the number that can replace "??".

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Move three sticks of the spiral below to form a square.

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?