I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

What has 13 hearts but no other organs?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

What always comes into a house through the keyhole?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Eight of us go fourth, not back, to protect our king from an attack. What are we?