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

In the image below, can you find the value of an angle(y)

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Where do fish keep their money?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Can you find the company name in the pictogram below?

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?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?