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?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What does this say?

XLR8

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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

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