It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. 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?

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

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

How far can you walk into the woods?

Complete the table series riddle by finding the number that can replace "??".

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"