What word is pronounced the same if you take away four of its five letters?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Find the number of squares in the below-given picture.

Can you count the number of triangles inside a triangle?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?