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?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

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

If Rajina's daughter is my daughter's mom, who am I to Rajina?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?