If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

In the given picture, in how many ways can you read the word "Tiger"?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

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.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

81 x 9 = 801. What must you do to make the this equation true?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

What is the end of everything?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Solve the following series:
AZ, GT, MN, __, YB