If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What is common among 11, 69, and 88?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

John walks into the daily grocery shop and steals a $100 bill from the shop. An hour later John returns to the shop and buys some daily products for $40. John pays the owner the $100 bill and therefore the owner returns him $60.

How much money did the owner lose?

I know a number which is spelt in alphabetical order.
Do you?

What occurs twice in a week, once in a year but never in a day?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.