If six children and two dogs were under an umbrella, how come none of them got wet?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Move three sticks of the spiral below to form a square.

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?