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

What has no start, end, or centre?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

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?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What is more useful when it is broken?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Name a key which is hardest to turn.