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 am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Find the smallest sentence with all the English alphabet.

Make a sentence consisting of three words that have the whole alphabet.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?