Can you place three balls such that the equation shown in the picture holds true?

What does the below mathematical rebus mean?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

How can you make number one disappear by adding something to it?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

Do you know who was buried in John's tomb?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Prove that twice of ten is the same as twice of eleven.

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

There are 3 apples in the basket and you take away 2. How many apples do you have now?