Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Which number should replace the question mark?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

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?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Which digit occurred maximum times between the number 1 and 1000?

What does below pictogram mean?