What can you deduce from the following BrainBat?

CRY
LMKI

What does this rebus photo means?

Why is the Hole below a Lock?

If eleven plus two equals one, what does nine plus five equal?

In the picture given below, can you find out which digit will take place of the question mark?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

Can you solve below mathematical equation?

2^1234 - 2^1233

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?