It really was hard to tell his age from a black and white photograph.

You know that a lady never wants to tell her age.

Daniel could not tell its age - a few weeks, perhaps older.

It was impossible to tell his age in the dim light.

"Perhaps the old fossil hunter will tell us his age?"

You can't tell a man's age by looking at his photo, not if he takes boosterspice.

I cannot tell her age from this distance, but she certainly appears fit.

She, in common with most mothers, could tell a child's age and state of health at a glance.

It was hard to tell his age; he could have been eight or eighty.

She's about 40 years old; she won't tell anyone her exact age.