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

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

What does this rebus riddle means ?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

What shoe company does this rebus represent?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

What's the only room from which no one can enter or leave

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?