Can you solve this picture maths equation?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

With the help clues provided in the image, can you find the 5 digit key?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

Can you replace the question mark with the correct number?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?