There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

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

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

Buy me, smell me or deliver me, I do not change.

Who am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.