Can you find out which number multiplied by itself will give the output as 12345678987654321?

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

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

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

What makes this number unique: 8,549,176,320?

Find the hidden panda in the image below.

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?

Can you start the fire using two pieces of wood?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Solve the puzzle by telling what does below picture means.

How many sides does a circle have?