Can you count the number of matches in the picture below ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Count the number of triangles in the below picture?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

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

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E