Coding and Decoding Questions

If wall is called window, window is called door, door is called floor, floor is callled roof and roof is callled ventilator, what will a person stand on ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

5 + 8 ÷ 40 - 20 x 25 = 6

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

90 ÷ 10 + 5 - 6 x 4 = 28

Answer the questions based on the below information.

If '+' is 'x', '-' is '+', 'x' is '/' and '/' is '-' then 6 - 9 + 8 x 3 / 20

If signs - and x, and numbers 3 and 15 are interchanged, what is the value of 3+12/6-4x15 is

If 18!10 = 4, 10!4 = 3 and 4!8 = -2, then find the value of 16!18 = ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

17 - 20 ÷ 25 x 6 + 10 = 12

If 7Ω6 = 84, 8Ω7 = 112 and 8Ω4 = 64, then find the value of 3Ω4 = ?