A word I know has six letters it contains, remove one letter and 12 remain. What is it?

When can we add 2 to 11 and get 1 as the correct answer?

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

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

In the image given, you can find several triangles. Can you count them all?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Bay of Bengal is in which state?

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?

Solve the puzzle by telling what does below picture means.

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???