For TOEFL exam there is no fix age for candidates. In any age candidates may apply for TOEFL exam. Anyone and everyone are eligible for taking the TOEFL test.

There are no restrictions based on age or qualifications. The test scores are valid for two years, i.e., most universities accept scores up to two years old.

The Test of English as a Foreign Language is a standardised test of English language proficiency for non-native English language speakers wishing to enroll in U.S. universities.

Exam pattern:

The TOEFL iBT test is scored on a scale of 0 to 120 points.

Each of the four sections:
Reading
Listening
Speaking
Writing receives a scaled score from 0 to 30.

The scaled scores from the four sections are added together to determine the total score.

Paper pattern:
Questions Timing
Computer Tutorial NA NA
Listening Section 30 - 50 questions 40 - 60 min.
Structure Section 20 - 25 questions 15 - 20 min.
Reading Section 44 - 60 questions 70 - 90 min.
Writing Section 1 Essay 30 min.
Total 94 - 135 question + 1 Essay 4 hrs (approx)