Related:

• Q. What does a mathematician do when he's constipated?
  A. He works it out with a pencil. Joseph Costa, NOSC...
• Q. What does a mathematician do when he's constipated? A. He works it out with a pencil.
• Q: What is the difference between a mathematician and a philosopher?
  A: The mathematician only needs paper, pencil, and a trash bin for his work - the philosopher can do without the trash bin....
• Jerk: what is found on both ends of fishing lines.
• ERROR LPT1 not found.. use backup - PENCIL & PAPER
• So how DO they get the lead into the pencil?
• Q: What's polish and has an IQ of 180? A: A village.
• You can lead a horse to water, but a pencil has to be lead.