What English word has three consecutive double letters?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

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?

Find the missing letter in the last circle logically in the given below picture.

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

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

What is the next number in the series?

15 29 56 108 208 ?

Can you find out who is the kidnapper in below Picture and why, Explain ?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?