You need to move three matchsticks to form three squares. Can you do it?

What runs around the whole yard without moving?

Can you replace the question mark with the correct number in the below table sequence?

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

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

I am an odd number. Take away a letter and I become even. What number am I?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?