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

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

When we see 2 but call 10?

Find the 8 in the below-given Image.

Can you solve the maths in the below-given picture equation?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

People put me on the table and cut me but do not eat me. What am I?

A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?