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

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

Can you make a six-letter word using the letters N, A and B ?

Prove that twice of ten is the same as twice of eleven.

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

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

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?