What's the best place to go shopping in the ocean?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Can you make four (4) nines (9) equal 100?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

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?

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?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.