Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Spot 5 differences in two Christmas tree below:

Who is that with a neck and no head, two arms and no hands? What is it?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Solve the puzzle by telling what does below picture means.

What goes up but never comes down?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

If 21x = 79x, what is the value of x?