Which alphabet letter is a question?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

Find the value of "a" by solving the maths equation in the picture below:

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

You can see it everyday, But cannot touch it at will. What is it?

I am sure no one can have two things for dinner. what are they?

What is the longest word in the dictionary?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?