Can you find out which number multiplied by itself will give the output as 12345678987654321?

10+10 and 11+11 can give you the same answer.

Explain how?

Can you decipher the two rows to find the hidden word?

People make me, save me, change me, raise me. What am I?

What is the fastest way to double your money?

Keyboard words are not in alphabetical order, Why?

A dead body is found outside a multi-story multinational company. The case is reported and a homicide detective is called on the crime scene.

He looks at the body and then towards the building. From the position of the body, it is evident that the victim committed suicide. He goes to the first floor of the building and then walks in the direction of the dead body, opens the window and toss a coin in the air.

He goes to second floor and again repeats the process. He keeps doing this till he is done on all the floors. Then he returns back to the floor and tells his team that it is a murder.

How in heaven did he deduce that?

What can you deduce from the following BrainBat?

CRY
LMKI

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

What work can one never finish?