Why is the Hole below a Lock?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Can you find out the missing number in the grid?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

what does this picture(rebus) riddle means ?

why number 8549176320 is one of a kind?

Who are the happiest people in IPL match?

A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?