Keyboard words are not in alphabetical order, Why?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What does this rebus means ?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

If an electric train is travelling south, then which way is the smoke going?