Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is the centre of gravity?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Which tank will fill first?

The more it dries, the wetter it becomes. Can you tell what it is?

What can jump higher than a building?

Find out the missing number in the picture attached:

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

What is at the end of a rainbow?