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

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Can you replace the question mark with the correct number?

what does the below rebus mean?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?