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

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

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

You bought me for dinner but never eat me. What am I?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Where do fish keep their money?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

I have feet, but no legs. Which animal Am I?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?