Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What's the only room from which no one can enter or leave

Can you count the number of blocks in the picture below?

Complete the table series riddle by finding the number that can replace "??".

Why is the Hole below a Lock?