People put me on the table and cut me but do not eat me. What am I?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Can you find the company name in the pictogram below?

My location can be determined by the below rebus.
So where am i ?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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

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

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?