I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

A man dies of old age on his 25 birthday. How is this possible?

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

Find the value of "a" by solving the maths equation in the picture below:

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Count the number of squares in the picture below.

What brings you down but never up?