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?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

What does it mean?

Next Number in the Series,

5, 16, 49, 104, ?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

What goes up but never comes down?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?