The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Give it food and it will live; give it water and it will die.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

The centre of the third figure is empty. What digit should fit inside?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Replace the question mark with the correct number in the below-given picture?

What's a single-digit number with no value?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

A sundial has the fewest moving parts of any timepiece. Which has the most?