Find out the number of circles in the given picture having Illusion

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

what's the probability of getting a king or a queen from a pack of 52 cards?

I have eight fingers and two thumbs but I do not live. What Am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What is the word or phrase?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?