They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Find the value of "?" in the ball picture Riddle below:

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.

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?