There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Can you name some countries which do not have the alphabet 'A' in them?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

In the given picture, in how many ways can you read the word "Tiger"?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

What is always in front of you but can’t be seen?

What is common among 11, 69, and 88?