If Rajina's daughter is my daughter's mom, who am I to Rajina?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Considering the below equation:

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

Then, I + II + III = ?

What word is pronounced the same if you take away four of its five letters?

What can you hold in your right hand, but never in your left hand?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

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

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?

Whats the next number in the below number sequence pattern.