Can you find out the remainder when 3^300 is divided by 5?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

81 x 9 = 801. What must you do to make the this equation true?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

John was writing his first book. After saving the document, he locked his laptop with a password and mentioned some phrases for the hint box.

A friend of his tried opening his laptop but found out that it was password protected. Following is the hint that appeared.
1 mobile 3 books 2 roars 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches.

Can you help him in cracking the password?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Count the number of triangles in the picture below: