The more of this there is, the less you see. What is it?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

If eleven plus two equals one, what does nine plus five equal?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

What can you deduce from the following BrainBat?

CRY
LMKI

Can you find a five letter word that is left with only two letters if one is removed?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?