It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What always comes into a house through the keyhole?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

What does this rebus means ?

Lady Gaga is pregnant and currently has 6 daughters

1. Dorry 2. Rebeka 3. Michael 4. Faniya 5. Sophia 6. Lavanya

What will she name her next child girl? (Think Logical)

A. Neema B. Tanya C. Tisha D. Jenniffer

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?