You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

What is the fastest way to double your money?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

A man was telling some of his war stories to his grandchildren.
"When the World War I was on the verge of end, I was awarded for my bravery for I had saved a group of my men." He coughed and then added, "When we were fighting in northern France, an enemy soldier threw a grenade at us. Before it could explode, I picked it up and threw it away. For my act of bravery, right before the war ended, A General gave me a sword engraved with the words "Awarded for Display of Bravery and Heroism in World War 1"."

Hearing this, one of the grandson spoke up. "Grandpa, this is not a true story. It can"t be true!"

The truth is that it was not. How did the grand children know it?

Which is faster, Heat or Cold ? Explain.

Find the next number in the following series:
6, 14, 26, 98, __?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

What do you see in the given picture?