What has hands, but can’t clap?

Find the missing letter in the last circle logically in the given below picture.

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?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

What part of the chicken has the most feathers?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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

Move three sticks of the spiral below to form a square.

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Why is the longest human nose just 11 inches?