Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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?

Forwards I am heavy, backward I am not. What am I?

Can you find out the remainder when 3^300 is divided by 5?

Can you find out the number of the parking space in which the car is parked?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

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