A father's child, a mother's child, yet no one's son.

Who am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

How can you take 2 from 5 and leave 4?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I am an odd number. Take away a letter and I become even. What number am I?

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