I have feet, but no legs. Which animal Am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

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

Can you start the fire using two pieces of wood?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

what does this below rebus represent identXQQQQQME

How do you go from 98 to 720 using just one letter?

Kohli and Dhoni decided to have a paintball match.
Kohli told Dhoni, "Sir it is not right as you got thrice the paintballs I have".

Dhoni instantly gives Kohli 10 hit paintballs.
Kohli replied, "Sir, I believe you still have twice the paintballs than I have".

Dhoni gives "?" more paintballs to Kohli.
Kohli replied, "Sir it is even now, Let us have a match".

What is "?".

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

What does it mean?