Light A is only on if light B is also on. Light C is always off when Light B is on. Light D is always off when light A is on. Light D is currently on. What can be currently said about the state of lights?

My father is twice as old as I will be ten years from now and three times as old as I am today. How old am I?

At the end of a banquet 10 people shake hands with each other. How many handshakes will there be in total?

True or false? The following argument is valid. no parrots are eagles no eagles are pelicans / no parrots are pelicans

Wayne is double the age of Fernando and one third as old as Didier who will be 48 years old in 6 years. How old is Fernando?

In how many of the nine words below is there a letter that appears more than once in the word and is not the first or the last letter of the word? barnyard outside interest doubled unbelievable indicate acceptable function indeterminate

Which of the following is larger than 3/5?

Where should parentheses be added to make the following expression true? 1 + 1 * 1 + 1 * 1 + 1 = 8

Complete the series: 4, 3, 8, 6, 16, ...

1000 - 2 * 0 + 1 =

4 * 3 + 12 ÷ 3 =