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

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

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

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?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Why is the Hole below a Lock?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Solve the counting riddle by identifying the number of triangles in the given picture.

A man is surviving on an island along with his friend. They have been starving for four days for food. Suddenly, they find a fisherman. The friend goes with the fisherman in order to catch the fish (if they can find any).

The fisherman returns after some time but he is alone and has some salmon that he had prepared. When asked, the fisherman tells him that his best friend fell off the boat and drowned in the water. Starving for so long, he eats the meal while crying for his friend.

After being rescued, he goes to a diner and orders salmon. When he eats his meal, he jumps and commits suicide. Why did he do it?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?