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

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

Can you solve the photo plexer logic ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?