using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Find the value of "?" in the ball picture Riddle below:

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

81 x 9 = 801. What must you do to make the this equation true?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Spot what is wrong here in below Picture?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.