Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

What do you answer even though it never asks you questions?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What is the next shape from answers A, B, C, and D figure?

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?

Can you count the number of squares in the given picture?

Can you find the key in the picture below?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?