Why Aeroplane windows are round?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

When it is alive we sing, when it is dead we clap our hands. What is it?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?