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

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

How many Watermelons are there in the below picture?

Can you solve below mathematical equation?

2^1234 - 2^1233

The more it dries, the wetter it becomes. Can you tell what it is?

The dirtier I get, the whiter I look. Who am I?

I am white when I am dirty, and black when I am clean. What am I?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

What is common among 11, 69, and 88?