Can you find out which number multiplied by itself will give the output as 12345678987654321?

What does Alexander the Great and Winnie the Pooh have in common?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Why is a river so rich ?

Identify the 10 differences between the two given pictures.

What word does this rebus represent?

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Count the number of squares in the picture below.

What jumps when it walks and sits when it stands?

You need to arrange three 7 and mathematical symbols to form number 1?