If 1 + 9 + 11 = 1, Then what is the value of

12 + 11 + 9 = ?

The present age of Jacob’s father is three times that of Jacob. After 5 years, sum of their ages would be 70 years. Find their present ages.

Here are some words translated from an artificial language.
gorblflur means fan belt
pixngorbl means ceiling fan
arthtusl means tile roof
Which word could mean "ceiling tile"?

1. gorbltusl

2. flurgorbl

3. arthflur

4. pixnarth

Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was?

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age?