Why is it very easy to weigh a fish?

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

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

Can you Find and name the hidden bird in the picture below ?

I can be cracked, made, told, and played. What am I?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Can you decipher the two rows to find the hidden word?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Which is faster, Heat or Cold ? Explain.

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?