When it's bad luck to meet a black cat?

Can you solve below mathematical equation?

2^1234 - 2^1233

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

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 am quite hot but become too cold if you remove the first two letters. What am I?

A man dies of old age on his 25 birthday. How is this possible?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

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

What work can one never finish?