Find the number of squares in the below picture

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

I look at you, you look at me I raise my right, you raise your left. What am I?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?