Buy me, smell me or deliver me, I do not change.

Who am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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 B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

It belongs to you, but other people use it more than you do. What is it?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What kind of tree can you carry in your hand?

What's a single-digit number with no value?