It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

In the four images below, can you find the odd one out?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

The dirtier I get, the whiter I look. Who am I?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Rearrange the letters in "new door" to make one word.

I have branches, but no fruit, trunk or leaves. What am I?

Can you place three balls such that the equation shown in the picture holds true?

If 21x = 79x, what is the value of x?

What has many teeth, but cannot bite?