#1 - Burning House Brain Teaser

A fireman Jacob stood at the center of a ladder and was spraying water on a burning house.
He climbed up 6 rungs before the heat of the flames forced him to come down 10 rungs.

Some minutes later, Jacob climb 18 rungs to the very top of the ladder.

How many rungs did the ladder have? 29

Jacob standing on the middle rung.
He goes up 6 rungs so he is now at M+6 and when he goes down 10 rungs so he is at M-4.
Jacob goes up 18 rungs so he is now at M+14 = T

14 rungs from the top, 14 rungs from the bottom, and the middle rung. 14+14+1=29

#2 - Easy Find Missing Number

which number is missing? #3 - Answer Fast Maths Brain Teaser

If 21 is added to four times a number, the result is 57.

Then the number is? 9

4x + 21 = 57
4x = 36
x = 9

#4 - Competitive Exams Hard BODMAS Question

Can you solve the below equation?

30 / 6 * 2 - 3 * 2 + 12 / 2 = ? 10

#5 - Burger Drink Fires Maths Problem

Can you solve the below KFC equation to prove that you are really smart? 15

#6 - which number replaces the question mark puzzle

which number replaces the question mark? 30

Explanation:
As you can see the lower number rows are always bigger than upper row ones with the difference going up by 3 with every step

34 - 32 = 2
32 - 27 = 5 (difference going up by 3 from last difference)
56 - 48 = 8 (difference going up by 3 from last difference)
? - 19 = 11 (difference going up by 3 from last difference)
so ? = 30

#7 - 6 + (-1^2)^3 x 4 / 2 Maths Equation

Can you solve the below Maths Equation? 4

#8 - Men Disc and Headphone Equation Puzzle

Can you solve the below Men Disc and Headphone equation? 43

#9 - Answer Fast Maths Equation Brain Teaser

Can you solve the below quickfire equation? 1 or -1

#10 - Smiley Algebraic Brain Teaser

Can you solve the below smiley equation? 180